// Copyright (c) 2014-2017 Thomas Fussell
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, WRISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE
//
// @license: http://www.opensource.org/licenses/mit-license.php

#pragma once

#include <algorithm>
#include <cstdint>
#include <iostream>
#include <fstream>
#include <limits>
#include <memory>
#include <sstream>
#include <string>
#include <time.h>
#include <vector>
#include <cstring>

/* miniz.c v1.15 - public domain deflate/inflate, zlib-subset, ZIP reading/writing/appending, PNG writing
   See "unlicense" statement at the end of this file.
   Rich Geldreich <richgel99@gmail.com>, last updated Oct. 13, 2013
   Implements RFC 1950: http://www.ietf.org/rfc/rfc1950.txt and RFC 1951: http://www.ietf.org/rfc/rfc1951.txt

   Most API's defined in miniz.c are optional. For example, to disable the archive related functions just define
   MINIZ_NO_ARCHIVE_APIS, or to get rid of all stdio usage define MINIZ_NO_STDIO (see the list below for more macros).

   * Change History
     10/13/13 v1.15 r4 - Interim bugfix release while I work on the next major release with Zip64 support (almost there!):
       - Critical fix for the sed_mz_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY bug (thanks kahmyong.moon@hp.com) which could cause locate files to not find files. This bug
        would only have occured in earlier versions if you explicitly used this flag, OR if you used sed_mz_zip_extract_archive_file_to_heap() or sed_mz_zip_add_mem_to_archive_file_in_place()
        (which used this flag). If you can't switch to v1.15 but want to fix this bug, just remove the uses of this flag from both helper funcs (and of course don't use the flag).
       - Bugfix in sed_mz_zip_reader_extract_to_mem_no_alloc() from kymoon when pUser_read_buf is not NULL and compressed size is > uncompressed size
       - Fixing sed_mz_zip_reader_extract_*() funcs so they don't try to extract compressed data from directory entries, to account for weird zipfiles which contain zero-size compressed data on dir entries.
         Hopefully this fix won't cause any issues on weird zip archives, because it assumes the low 16-bits of zip external attributes are DOS attributes (which I believe they always are in practice).
       - Fixing sed_mz_zip_reader_is_file_a_directory() so it doesn't check the internal attributes, just the filename and external attributes
       - sed_mz_zip_reader_init_file() - missing sed_mz_FCLOSE() call if the seek failed
       - Added cmake support for Linux builds which builds all the examples, tested with clang v3.3 and gcc v4.6.
       - Clang fix for sed_tdefl_write_image_to_png_file_in_memory() from toffaletti
       - Merged sed_mz_FORCEINLINE fix from hdeanclark
       - Fix <time.h> include before config #ifdef, thanks emil.brink
       - Added sed_tdefl_write_image_to_png_file_in_memory_ex(): supports Y flipping (super useful for OpenGL apps), and explicit control over the compression level (so you can
        set it to 1 for real-time compression).
       - Merged in some compiler fixes from paulharris's github repro.
       - Retested this build under Windows (VS 2010, including static analysis), tcc  0.9.26, gcc v4.6 and clang v3.3.
       - Added example6.c, which dumps an image of the mandelbrot set to a PNG file.
       - Modified example2 to help test the sed_mz_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY flag more.
       - In r3: Bugfix to sed_mz_zip_writer_add_file() found during merge: Fix possible src file fclose() leak if alignment bytes+local header file write faiiled
       - In r4: Minor bugfix to sed_mz_zip_writer_add_from_zip_reader(): Was pushing the wrong central dir header offset, appears harmless in this release, but it became a problem in the zip64 branch
     5/20/12 v1.14 - MinGW32/64 GCC 4.6.1 compiler fixes: added sed_mz_FORCEINLINE, #include <time.h> (thanks fermtect).
     5/19/12 v1.13 - From jason@cornsyrup.org and kelwert@mtu.edu - Fix sed_mz_crc32() so it doesn't compute the wrong CRC-32's when sed_mz_ulong is 64-bit.
       - Temporarily/locally slammed in "typedef unsigned long sed_mz_ulong" and re-ran a randomized regression test on ~500k files.
       - Eliminated a bunch of warnings when compiling with GCC 32-bit/64.
       - Ran all examples, miniz.c, and sed_tinfl.c through MSVC 2008's /analyze (static analysis) option and fixed all warnings (except for the silly
        "Use of the comma-operator in a tested expression.." analysis warning, which I purposely use to work around a MSVC compiler warning).
       - Created 32-bit and 64-bit Codeblocks projects/workspace. Built and tested Linux executables. The codeblocks workspace is compatible with Linux+Win32/x64.
       - Added miniz_tester solution/project, which is a useful little app derived from LZHAM's tester app that I use as part of the regression test.
       - Ran miniz.c and sed_tinfl.c through another series of regression testing on ~500,000 files and archives.
       - Modified example5.c so it purposely disables a bunch of high-level functionality (MINIZ_NO_STDIO, etc.). (Thanks to corysama for the MINIZ_NO_STDIO bug report.)
       - Fix ftell() usage in examples so they exit with an error on files which are too large (a limitation of the examples, not miniz itself).
     4/12/12 v1.12 - More comments, added low-level example5.c, fixed a couple minor level_and_flags issues in the archive API's.
      level_and_flags can now be set to sed_mz_DEFAULT_COMPRESSION. Thanks to Bruce Dawson <bruced@valvesoftware.com> for the feedback/bug report.
     5/28/11 v1.11 - Added statement from unlicense.org
     5/27/11 v1.10 - Substantial compressor optimizations:
      - Level 1 is now ~4x faster than before. The L1 compressor's throughput now varies between 70-110MB/sec. on a
      - Core i7 (actual throughput varies depending on the type of data, and x64 vs. x86).
      - Improved baseline L2-L9 compression perf. Also, greatly improved compression perf. issues on some file types.
      - Refactored the compression code for better readability and maintainability.
      - Added level 10 compression level (L10 has slightly better ratio than level 9, but could have a potentially large
       drop in throughput on some files).
     5/15/11 v1.09 - Initial stable release.

   * Low-level Deflate/Inflate implementation notes:

     Compression: Use the "sed_tdefl" API's. The compressor supports raw, static, and dynamic blocks, lazy or
     greedy parsing, match length filtering, RLE-only, and Huffman-only streams. It performs and compresses
     approximately as well as zlib.

     Decompression: Use the "sed_tinfl" API's. The entire decompressor is implemented as a single function
     coroutine: see sed_tinfl_decompress(). It supports decompression into a 32KB (or larger power of 2) wrapping buffer, or into a memory
     block large enough to hold the entire file.

     The low-level sed_tdefl/sed_tinfl API's do not make any use of dynamic memory allocation.

   * zlib-style API notes:

     miniz.c implements a fairly large subset of zlib. There's enough functionality present for it to be a drop-in
     zlib replacement in many apps:
        The z_stream struct, optional memory allocation callbacks
        deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound
        inflateInit/inflateInit2/inflate/inflateEnd
        compress, compress2, compressBound, uncompress
        CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly routines.
        Supports raw deflate streams or standard zlib streams with adler-32 checking.

     Limitations:
      The callback API's are not implemented yet. No support for gzip headers or zlib static dictionaries.
      I've tried to closely emulate zlib's various flavors of stream flushing and return status codes, but
      there are no guarantees that miniz.c pulls this off perfectly.

   * PNG writing: See the sed_tdefl_write_image_to_png_file_in_memory() function, originally written by
     Alex Evans. Supports 1-4 bytes/pixel images.

   * ZIP archive API notes:

     The ZIP archive API's where designed with simplicity and efficiency in mind, with just enough abstraction to
     get the job done with minimal fuss. There are simple API's to retrieve file information, read files from
     existing archives, create new archives, append new files to existing archives, or clone archive data from
     one archive to another. It supports archives located in memory or the heap, on disk (using stdio.h),
     or you can specify custom file read/write callbacks.

     - Archive reading: Just call this function to read a single file from a disk archive:

      void *sed_mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name,
        size_t *pSize, sed_mz_uint zip_flags);

     For more complex cases, use the "sed_mz_zip_reader" functions. Upon opening an archive, the entire central
     directory is located and read as-is into memory, and subsequent file access only occurs when reading individual files.

     - Archives file scanning: The simple way is to use this function to scan a loaded archive for a specific file:

     int sed_mz_zip_reader_locate_file(sed_mz_zip_archive *pZip, const char *pName, const char *pComment, sed_mz_uint flags);

     The locate operation can optionally check file comments too, which (as one example) can be used to identify
     multiple versions of the same file in an archive. This function uses a simple linear search through the central
     directory, so it's not very fast.

     Alternately, you can iterate through all the files in an archive (using sed_mz_zip_reader_get_num_files()) and
     retrieve detailed info on each file by calling sed_mz_zip_reader_file_stat().

     - Archive creation: Use the "sed_mz_zip_writer" functions. The ZIP writer immediately writes compressed file data
     to disk and builds an exact image of the central directory in memory. The central directory image is written
     all at once at the end of the archive file when the archive is finalized.

     The archive writer can optionally align each file's local header and file data to any power of 2 alignment,
     which can be useful when the archive will be read from optical media. Also, the writer supports placing
     arbitrary data blobs at the very beginning of ZIP archives. Archives written using either feature are still
     readable by any ZIP tool.

     - Archive appending: The simple way to add a single file to an archive is to call this function:

      sed_mz_bool sed_mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name,
        const void *pBuf, size_t buf_size, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint level_and_flags);

     The archive will be created if it doesn't already exist, otherwise it'll be appended to.
     Note the appending is done in-place and is not an atomic operation, so if something goes wrong
     during the operation it's possible the archive could be left without a central directory (although the local
     file headers and file data will be fine, so the archive will be recoverable).

     For more complex archive modification scenarios:
     1. The safest way is to use a sed_mz_zip_reader to read the existing archive, cloning only those bits you want to
     preserve into a new archive using using the sed_mz_zip_writer_add_from_zip_reader() function (which compiles the
     compressed file data as-is). When you're done, delete the old archive and rename the newly written archive, and
     you're done. This is safe but requires a bunch of temporary disk space or heap memory.

     2. Or, you can convert an sed_mz_zip_reader in-place to an sed_mz_zip_writer using sed_mz_zip_writer_init_from_reader(),
     append new files as needed, then finalize the archive which will write an updated central directory to the
     original archive. (This is basically what sed_mz_zip_add_mem_to_archive_file_in_place() does.) There's a
     possibility that the archive's central directory could be lost with this method if anything goes wrong, though.

     - ZIP archive support limitations:
     No zip64 or spanning support. Extraction functions can only handle unencrypted, stored or deflated files.
     Requires streams capable of seeking.

   * This is a header file library, like stb_image.c. To get only a header file, either cut and paste the
     below header, or create miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then include miniz.c from it.

   * Important: For best perf. be sure to customize the below macros for your target platform:
     #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
     #define MINIZ_LITTLE_ENDIAN 1
     #define MINIZ_HAS_64BIT_REGISTERS 1

   * On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE 1" before including miniz.c to ensure miniz
     uses the 64-bit variants: fopen64(), stat64(), etc. Otherwise you won't be able to process large files
     (i.e. 32-bit stat() fails for me on files > 0x7FFFFFFF bytes).
*/

#ifndef MINIZ_HEADER_INCLUDED
#define MINIZ_HEADER_INCLUDED

#include <stdlib.h>

// Defines to completely disable specific portions of miniz.c:
// If all macros here are defined the only functionality remaining will be CRC-32, adler-32, sed_tinfl, and sed_tdefl.

// Define MINIZ_NO_STDIO to disable all usage and any functions which rely on stdio for file I/O.
//#define MINIZ_NO_STDIO

// If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able to get the current time, or
// get/set file times, and the C run-time funcs that get/set times won't be called.
// The current downside is the times written to your archives will be from 1979.
//#define MINIZ_NO_TIME

// Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's.
//#define MINIZ_NO_ARCHIVE_APIS

// Define MINIZ_NO_ARCHIVE_APIS to disable all writing related ZIP archive API's.
//#define MINIZ_NO_ARCHIVE_WRITING_APIS

// Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression API's.
//#define MINIZ_NO_ZLIB_APIS

// Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent conflicts against stock zlib.
//#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES

// Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc.
// Note if MINIZ_NO_MALLOC is defined then the user must always provide custom user alloc/free/realloc
// callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user
// functions (such as sed_tdefl_compress_mem_to_heap() and sed_tinfl_decompress_mem_to_heap()) won't work.
//#define MINIZ_NO_MALLOC

#if defined(__TINYC__) && (defined(__linux) || defined(__linux__))
  // TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc on Linux
  #define MINIZ_NO_TIME
#endif

#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS)
  #include <time.h>
#endif

#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__i486__) || defined(__i486) || defined(i386) || defined(__ia64__) || defined(__x86_64__)
// MINIZ_X86_OR_X64_CPU is only used to help set the below macros.
#define MINIZ_X86_OR_X64_CPU 1
#endif

#if (__BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU
// Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian.
#define MINIZ_LITTLE_ENDIAN 1
#endif

#if MINIZ_X86_OR_X64_CPU
// Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses.
#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
#endif

#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__)
// Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers are reasonably fast (and don't involve compiler generated calls to helper functions).
#define MINIZ_HAS_64BIT_REGISTERS 1
#endif

#ifdef __APPLE__
#define ftello64 ftello
#define fseeko64 fseeko
#define fopen64 fopen
#define freopen64 freopen
//#define stat64 stat
#endif

#ifdef __cplusplus
extern "C" {
#endif

// ------------------- zlib-style API Definitions.

// For more compatibility with zlib, miniz.c uses unsigned long for some parameters/struct members. Beware: sed_mz_ulong can be either 32 or 64-bits!
typedef unsigned long sed_mz_ulong;

// sed_mz_free() internally uses the sed_mz_FREE() macro (which by default calls free() unless you've modified the sed_mz_MALLOC macro) to release a block allocated from the heap.
void sed_mz_free(void *p);

#define sed_mz_ADLER32_INIT (1)
// sed_mz_adler32() returns the initial adler-32 value to use when called with ptr==NULL.
sed_mz_ulong sed_mz_adler32(sed_mz_ulong adler, const unsigned char *ptr, size_t buf_len);

#define sed_mz_CRC32_INIT (0)
// sed_mz_crc32() returns the initial CRC-32 value to use when called with ptr==NULL.
sed_mz_ulong sed_mz_crc32(sed_mz_ulong crc, const unsigned char *ptr, size_t buf_len);

// Compression strategies.
enum { sed_mz_DEFAULT_STRATEGY = 0, sed_mz_FILTERED = 1, sed_mz_HUFFMAN_ONLY = 2, sed_mz_RLE = 3, sed_mz_FIXED = 4 };

// Method
#define sed_mz_DEFLATED 8

#ifndef MINIZ_NO_ZLIB_APIS

// Heap allocation callbacks.
// Note that sed_mz_alloc_func parameter types purpsosely differ from zlib's: items/size is size_t, not unsigned long.
typedef void *(*sed_mz_alloc_func)(void *opaque, size_t items, size_t size);
typedef void (*sed_mz_free_func)(void *opaque, void *address);
typedef void *(*sed_mz_realloc_func)(void *opaque, void *address, size_t items, size_t size);

#define sed_mz_VERSION          "9.1.15"
#define sed_mz_VERNUM           0x91F0
#define sed_mz_VER_MAJOR        9
#define sed_mz_VER_MINOR        1
#define sed_mz_VER_REVISION     15
#define sed_mz_VER_SUBREVISION  0

// Flush values. For typical usage you only need sed_mz_NO_FLUSH and sed_mz_FINISH. The other values are for advanced use (refer to the zlib docs).
enum { sed_mz_NO_FLUSH = 0, sed_mz_PARTIAL_FLUSH = 1, sed_mz_SYNC_FLUSH = 2, sed_mz_FULL_FLUSH = 3, sed_mz_FINISH = 4, sed_mz_BLOCK = 5 };

// Return status codes. sed_mz_PARAM_ERROR is non-standard.
enum { sed_mz_OK = 0, sed_mz_STREAM_END = 1, sed_mz_NEED_DICT = 2, sed_mz_ERRNO = -1, sed_mz_STREAM_ERROR = -2, sed_mz_DATA_ERROR = -3, sed_mz_MEM_ERROR = -4, sed_mz_BUF_ERROR = -5, sed_mz_VERSION_ERROR = -6, sed_mz_PARAM_ERROR = -10000 };

// Compression levels: 0-9 are the standard zlib-style levels, 10 is best possible compression (not zlib compatible, and may be very slow), sed_mz_DEFAULT_COMPRESSION=sed_mz_DEFAULT_LEVEL.
enum { sed_mz_NO_COMPRESSION = 0, sed_mz_BEST_SPEED = 1, sed_mz_BEST_COMPRESSION = 9, sed_mz_UBER_COMPRESSION = 10, sed_mz_DEFAULT_LEVEL = 6, sed_mz_DEFAULT_COMPRESSION = -1 };

// Window bits
#define sed_mz_DEFAULT_WINDOW_BITS 15

struct sed_mz_internal_state;

// Compression/decompression stream struct.
typedef struct sed_mz_stream_s
{
  const unsigned char *next_in;     // pointer to next byte to read
  unsigned int avail_in;            // number of bytes available at next_in
  sed_mz_ulong total_in;                // total number of bytes consumed so far

  unsigned char *next_out;          // pointer to next byte to write
  unsigned int avail_out;           // number of bytes that can be written to next_out
  sed_mz_ulong total_out;               // total number of bytes produced so far

  char *msg;                        // error msg (unused)
  struct sed_mz_internal_state *state;  // internal state, allocated by zalloc/zfree

  sed_mz_alloc_func zalloc;             // optional heap allocation function (defaults to malloc)
  sed_mz_free_func zfree;               // optional heap free function (defaults to free)
  void *opaque;                     // heap alloc function user pointer

  int data_type;                    // data_type (unused)
  sed_mz_ulong adler;                   // adler32 of the source or uncompressed data
  sed_mz_ulong reserved;                // not used
} sed_mz_stream;

typedef sed_mz_stream *sed_mz_streamp;

// Returns the version string of miniz.c.
const char *sed_mz_version(void);

// sed_mz_deflateInit() initializes a compressor with default options:
// Parameters:
//  pStream must point to an initialized sed_mz_stream struct.
//  level must be between [sed_mz_NO_COMPRESSION, sed_mz_BEST_COMPRESSION].
//  level 1 enables a specially optimized compression function that's been optimized purely for performance, not ratio.
//  (This special func. is currently only enabled when MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.)
// Return values:
//  sed_mz_OK on success.
//  sed_mz_STREAM_ERROR if the stream is bogus.
//  sed_mz_PARAM_ERROR if the input parameters are bogus.
//  sed_mz_MEM_ERROR on out of memory.
int sed_mz_deflateInit(sed_mz_streamp pStream, int level);

// sed_mz_deflateInit2() is like sed_mz_deflate(), except with more control:
// Additional parameters:
//   method must be sed_mz_DEFLATED
//   window_bits must be sed_mz_DEFAULT_WINDOW_BITS (to wrap the deflate stream with zlib header/adler-32 footer) or -sed_mz_DEFAULT_WINDOW_BITS (raw deflate/no header or footer)
//   mem_level must be between [1, 9] (it's checked but ignored by miniz.c)
int sed_mz_deflateInit2(sed_mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy);

// Quickly resets a compressor without having to reallocate anything. Same as calling sed_mz_deflateEnd() followed by sed_mz_deflateInit()/sed_mz_deflateInit2().
int sed_mz_deflateReset(sed_mz_streamp pStream);

// sed_mz_deflate() compresses the input to output, consuming as much of the input and producing as much output as possible.
// Parameters:
//   pStream is the stream to read from and write to. You must initialize/update the next_in, avail_in, next_out, and avail_out members.
//   flush may be sed_mz_NO_FLUSH, sed_mz_PARTIAL_FLUSH/sed_mz_SYNC_FLUSH, sed_mz_FULL_FLUSH, or sed_mz_FINISH.
// Return values:
//   sed_mz_OK on success (when flushing, or if more input is needed but not available, and/or there's more output to be written but the output buffer is full).
//   sed_mz_STREAM_END if all input has been consumed and all output bytes have been written. Don't call sed_mz_deflate() on the stream anymore.
//   sed_mz_STREAM_ERROR if the stream is bogus.
//   sed_mz_PARAM_ERROR if one of the parameters is invalid.
//   sed_mz_BUF_ERROR if no forward progress is possible because the input and/or output buffers are empty. (Fill up the input buffer or free up some output space and try again.)
int sed_mz_deflate(sed_mz_streamp pStream, int flush);

// sed_mz_deflateEnd() deinitializes a compressor:
// Return values:
//  sed_mz_OK on success.
//  sed_mz_STREAM_ERROR if the stream is bogus.
int sed_mz_deflateEnd(sed_mz_streamp pStream);

// sed_mz_deflateBound() returns a (very) conservative upper bound on the amount of data that could be generated by deflate(), assuming flush is set to only sed_mz_NO_FLUSH or sed_mz_FINISH.
sed_mz_ulong sed_mz_deflateBound(sed_mz_streamp pStream, sed_mz_ulong source_len);

// Single-call compression functions sed_mz_compress() and sed_mz_compress2():
// Returns sed_mz_OK on success, or one of the error codes from sed_mz_deflate() on failure.
int sed_mz_compress(unsigned char *pDest, sed_mz_ulong *pDest_len, const unsigned char *pSource, sed_mz_ulong source_len);
int sed_mz_compress2(unsigned char *pDest, sed_mz_ulong *pDest_len, const unsigned char *pSource, sed_mz_ulong source_len, int level);

// sed_mz_compressBound() returns a (very) conservative upper bound on the amount of data that could be generated by calling sed_mz_compress().
sed_mz_ulong sed_mz_compressBound(sed_mz_ulong source_len);

// Initializes a decompressor.
int sed_mz_inflateInit(sed_mz_streamp pStream);

// sed_mz_inflateInit2() is like sed_mz_inflateInit() with an additional option that controls the window size and whether or not the stream has been wrapped with a zlib header/footer:
// window_bits must be sed_mz_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -sed_mz_DEFAULT_WINDOW_BITS (raw deflate).
int sed_mz_inflateInit2(sed_mz_streamp pStream, int window_bits);

// Decompresses the input stream to the output, consuming only as much of the input as needed, and writing as much to the output as possible.
// Parameters:
//   pStream is the stream to read from and write to. You must initialize/update the next_in, avail_in, next_out, and avail_out members.
//   flush may be sed_mz_NO_FLUSH, sed_mz_SYNC_FLUSH, or sed_mz_FINISH.
//   On the first call, if flush is sed_mz_FINISH it's assumed the input and output buffers are both sized large enough to decompress the entire stream in a single call (this is slightly faster).
//   sed_mz_FINISH implies that there are no more source bytes available beside what's already in the input buffer, and that the output buffer is large enough to hold the rest of the decompressed data.
// Return values:
//   sed_mz_OK on success. Either more input is needed but not available, and/or there's more output to be written but the output buffer is full.
//   sed_mz_STREAM_END if all needed input has been consumed and all output bytes have been written. For zlib streams, the adler-32 of the decompressed data has also been verified.
//   sed_mz_STREAM_ERROR if the stream is bogus.
//   sed_mz_DATA_ERROR if the deflate stream is invalid.
//   sed_mz_PARAM_ERROR if one of the parameters is invalid.
//   sed_mz_BUF_ERROR if no forward progress is possible because the input buffer is empty but the inflater needs more input to continue, or if the output buffer is not large enough. Call sed_mz_inflate() again
//   with more input data, or with more room in the output buffer (except when using single call decompression, described above).
int sed_mz_inflate(sed_mz_streamp pStream, int flush);

// Deinitializes a decompressor.
int sed_mz_inflateEnd(sed_mz_streamp pStream);

// Single-call decompression.
// Returns sed_mz_OK on success, or one of the error codes from sed_mz_inflate() on failure.
int sed_mz_uncompress(unsigned char *pDest, sed_mz_ulong *pDest_len, const unsigned char *pSource, sed_mz_ulong source_len);

// Returns a string description of the specified error code, or NULL if the error code is invalid.
const char *sed_mz_error(int err);

// Redefine zlib-compatible names to miniz equivalents, so miniz.c can be used as a drop-in replacement for the subset of zlib that miniz.c supports.
// Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you use zlib in the same project.
#ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES
  typedef unsigned char Byte;
  typedef unsigned int uInt;
  typedef sed_mz_ulong uLong;
  typedef Byte Bytef;
  typedef uInt uIntf;
  typedef char charf;
  typedef int intf;
  typedef void *voidpf;
  typedef uLong uLongf;
  typedef void *voidp;
  typedef void *const voidpc;
  #define Z_NULL                0
  #define Z_NO_FLUSH            sed_mz_NO_FLUSH
  #define Z_PARTIAL_FLUSH       sed_mz_PARTIAL_FLUSH
  #define Z_SYNC_FLUSH          sed_mz_SYNC_FLUSH
  #define Z_FULL_FLUSH          sed_mz_FULL_FLUSH
  #define Z_FINISH              sed_mz_FINISH
  #define Z_BLOCK               sed_mz_BLOCK
  #define Z_OK                  sed_mz_OK
  #define Z_STREAM_END          sed_mz_STREAM_END
  #define Z_NEED_DICT           sed_mz_NEED_DICT
  #define Z_ERRNO               sed_mz_ERRNO
  #define Z_STREAM_ERROR        sed_mz_STREAM_ERROR
  #define Z_DATA_ERROR          sed_mz_DATA_ERROR
  #define Z_MEM_ERROR           sed_mz_MEM_ERROR
  #define Z_BUF_ERROR           sed_mz_BUF_ERROR
  #define Z_VERSION_ERROR       sed_mz_VERSION_ERROR
  #define Z_PARAM_ERROR         sed_mz_PARAM_ERROR
  #define Z_NO_COMPRESSION      sed_mz_NO_COMPRESSION
  #define Z_BEST_SPEED          sed_mz_BEST_SPEED
  #define Z_BEST_COMPRESSION    sed_mz_BEST_COMPRESSION
  #define Z_DEFAULT_COMPRESSION sed_mz_DEFAULT_COMPRESSION
  #define Z_DEFAULT_STRATEGY    sed_mz_DEFAULT_STRATEGY
  #define Z_FILTERED            sed_mz_FILTERED
  #define Z_HUFFMAN_ONLY        sed_mz_HUFFMAN_ONLY
  #define Z_RLE                 sed_mz_RLE
  #define Z_FIXED               sed_mz_FIXED
  #define Z_DEFLATED            sed_mz_DEFLATED
  #define Z_DEFAULT_WINDOW_BITS sed_mz_DEFAULT_WINDOW_BITS
  #define alloc_func            sed_mz_alloc_func
  #define free_func             sed_mz_free_func
  #define internal_state        sed_mz_internal_state
  #define z_stream              sed_mz_stream
  #define deflateInit           sed_mz_deflateInit
  #define deflateInit2          sed_mz_deflateInit2
  #define deflateReset          sed_mz_deflateReset
  #define deflate               sed_mz_deflate
  #define deflateEnd            sed_mz_deflateEnd
  #define deflateBound          sed_mz_deflateBound
  #define compress              sed_mz_compress
  #define compress2             sed_mz_compress2
  #define compressBound         sed_mz_compressBound
  #define inflateInit           sed_mz_inflateInit
  #define inflateInit2          sed_mz_inflateInit2
  #define inflate               sed_mz_inflate
  #define inflateEnd            sed_mz_inflateEnd
  #define uncompress            sed_mz_uncompress
  #define crc32                 sed_mz_crc32
  #define adler32               sed_mz_adler32
  #define MAX_WBITS             15
  #define MAX_MEM_LEVEL         9
  #define zError                sed_mz_error
  #define ZLIB_VERSION          sed_mz_VERSION
  #define ZLIB_VERNUM           sed_mz_VERNUM
  #define ZLIB_VER_MAJOR        sed_mz_VER_MAJOR
  #define ZLIB_VER_MINOR        sed_mz_VER_MINOR
  #define ZLIB_VER_REVISION     sed_mz_VER_REVISION
  #define ZLIB_VER_SUBREVISION  sed_mz_VER_SUBREVISION
  #define zlibVersion           sed_mz_version
  #define zlib_version          sed_mz_version()
#endif // #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES

#endif // MINIZ_NO_ZLIB_APIS

// ------------------- Types and macros

typedef unsigned char sed_mz_uint8;
typedef signed short sed_mz_int16;
typedef unsigned short sed_mz_uint16;
typedef unsigned int sed_mz_uint32;
typedef unsigned int sed_mz_uint;
typedef long long sed_mz_int64;
typedef unsigned long long sed_mz_uint64;
typedef int sed_mz_bool;

#define sed_mz_FALSE (0)
#define sed_mz_TRUE (1)

// An attempt to work around MSVC's spammy "warning C4127: conditional expression is constant" message.
#ifdef _MSC_VER
   #define sed_mz_MACRO_END while (0, 0)
#else
   #define sed_mz_MACRO_END while (0)
#endif

// ------------------- ZIP archive reading/writing

#ifndef MINIZ_NO_ARCHIVE_APIS

enum
{
  sed_mz_ZIP_MAX_IO_BUF_SIZE = 64*1024,
  sed_mz_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 260,
  sed_mz_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 256
};

typedef struct
{
  sed_mz_uint32 m_file_index;
  sed_mz_uint32 m_central_dir_ofs;
  sed_mz_uint16 m_version_made_by;
  sed_mz_uint16 m_version_needed;
  sed_mz_uint16 m_bit_flag;
  sed_mz_uint16 m_method;
#ifndef MINIZ_NO_TIME
  time_t m_time;
#endif
  sed_mz_uint32 m_crc32;
  sed_mz_uint64 m_comp_size;
  sed_mz_uint64 m_uncomp_size;
  sed_mz_uint16 m_internal_attr;
  sed_mz_uint32 m_external_attr;
  sed_mz_uint64 m_local_header_ofs;
  sed_mz_uint32 m_comment_size;
  char m_filename[sed_mz_ZIP_MAX_ARCHIVE_FILENAME_SIZE];
  char m_comment[sed_mz_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE];
} sed_mz_zip_archive_file_stat;

typedef size_t (*sed_mz_file_read_func)(void *pOpaque, sed_mz_uint64 file_ofs, void *pBuf, size_t n);
typedef size_t (*sed_mz_file_write_func)(void *pOpaque, sed_mz_uint64 file_ofs, const void *pBuf, size_t n);

struct sed_mz_zip_internal_state_tag;
typedef struct sed_mz_zip_internal_state_tag sed_mz_zip_internal_state;

typedef enum
{
  sed_mz_ZIP_MODE_INVALID = 0,
  sed_mz_ZIP_MODE_READING = 1,
  sed_mz_ZIP_MODE_WRITING = 2,
  sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3
} sed_mz_zip_mode;

typedef struct sed_mz_zip_archive_tag
{
  sed_mz_uint64 m_archive_size;
  sed_mz_uint64 m_central_directory_file_ofs;
  sed_mz_uint m_total_files;
  sed_mz_zip_mode m_zip_mode;

  sed_mz_uint m_file_offset_alignment;

  sed_mz_alloc_func m_pAlloc;
  sed_mz_free_func m_pFree;
  sed_mz_realloc_func m_pRealloc;
  void *m_pAlloc_opaque;

  sed_mz_file_read_func m_pRead;
  sed_mz_file_write_func m_pWrite;
  void *m_pIO_opaque;

  sed_mz_zip_internal_state *m_pState;

} sed_mz_zip_archive;

typedef enum
{
  sed_mz_ZIP_FLAG_CASE_SENSITIVE                = 0x0100,
  sed_mz_ZIP_FLAG_IGNORE_PATH                   = 0x0200,
  sed_mz_ZIP_FLAG_COMPRESSED_DATA               = 0x0400,
  sed_mz_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800
} sed_mz_zip_flags;

// ZIP archive reading

// Inits a ZIP archive reader.
// These functions read and validate the archive's central directory.
sed_mz_bool sed_mz_zip_reader_init(sed_mz_zip_archive *pZip, sed_mz_uint64 size, sed_mz_uint32 flags);
sed_mz_bool sed_mz_zip_reader_init_mem(sed_mz_zip_archive *pZip, const void *pMem, size_t size, sed_mz_uint32 flags);

#ifndef MINIZ_NO_STDIO
sed_mz_bool sed_mz_zip_reader_init_file(sed_mz_zip_archive *pZip, const char *pFilename, sed_mz_uint32 flags);
#endif

// Returns the total number of files in the archive.
sed_mz_uint sed_mz_zip_reader_get_num_files(sed_mz_zip_archive *pZip);

// Returns detailed information about an archive file entry.
sed_mz_bool sed_mz_zip_reader_file_stat(sed_mz_zip_archive *pZip, sed_mz_uint file_index, sed_mz_zip_archive_file_stat *pStat);

// Determines if an archive file entry is a directory entry.
sed_mz_bool sed_mz_zip_reader_is_file_a_directory(sed_mz_zip_archive *pZip, sed_mz_uint file_index);
sed_mz_bool sed_mz_zip_reader_is_file_encrypted(sed_mz_zip_archive *pZip, sed_mz_uint file_index);

// Retrieves the filename of an archive file entry.
// Returns the number of bytes written to pFilename, or if filename_buf_size is 0 this function returns the number of bytes needed to fully store the filename.
sed_mz_uint sed_mz_zip_reader_get_filename(sed_mz_zip_archive *pZip, sed_mz_uint file_index, char *pFilename, sed_mz_uint filename_buf_size);

// Attempts to locates a file in the archive's central directory.
// Valid flags: sed_mz_ZIP_FLAG_CASE_SENSITIVE, sed_mz_ZIP_FLAG_IGNORE_PATH
// Returns -1 if the file cannot be found.
int sed_mz_zip_reader_locate_file(sed_mz_zip_archive *pZip, const char *pName, const char *pComment, sed_mz_uint flags);

// Extracts a archive file to a memory buffer using no memory allocation.
sed_mz_bool sed_mz_zip_reader_extract_to_mem_no_alloc(sed_mz_zip_archive *pZip, sed_mz_uint file_index, void *pBuf, size_t buf_size, sed_mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size);
sed_mz_bool sed_mz_zip_reader_extract_file_to_mem_no_alloc(sed_mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, sed_mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size);

// Extracts a archive file to a memory buffer.
sed_mz_bool sed_mz_zip_reader_extract_to_mem(sed_mz_zip_archive *pZip, sed_mz_uint file_index, void *pBuf, size_t buf_size, sed_mz_uint flags);
sed_mz_bool sed_mz_zip_reader_extract_file_to_mem(sed_mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, sed_mz_uint flags);

// Extracts a archive file to a dynamically allocated heap buffer.
void *sed_mz_zip_reader_extract_to_heap(sed_mz_zip_archive *pZip, sed_mz_uint file_index, size_t *pSize, sed_mz_uint flags);
void *sed_mz_zip_reader_extract_file_to_heap(sed_mz_zip_archive *pZip, const char *pFilename, size_t *pSize, sed_mz_uint flags);

// Extracts a archive file using a callback function to output the file's data.
sed_mz_bool sed_mz_zip_reader_extract_to_callback(sed_mz_zip_archive *pZip, sed_mz_uint file_index, sed_mz_file_write_func pCallback, void *pOpaque, sed_mz_uint flags);
sed_mz_bool sed_mz_zip_reader_extract_file_to_callback(sed_mz_zip_archive *pZip, const char *pFilename, sed_mz_file_write_func pCallback, void *pOpaque, sed_mz_uint flags);

#ifndef MINIZ_NO_STDIO
// Extracts a archive file to a disk file and sets its last accessed and modified times.
// This function only extracts files, not archive directory records.
sed_mz_bool sed_mz_zip_reader_extract_to_file(sed_mz_zip_archive *pZip, sed_mz_uint file_index, const char *pDst_filename, sed_mz_uint flags);
sed_mz_bool sed_mz_zip_reader_extract_file_to_file(sed_mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, sed_mz_uint flags);
#endif

// Ends archive reading, freeing all allocations, and closing the input archive file if sed_mz_zip_reader_init_file() was used.
sed_mz_bool sed_mz_zip_reader_end(sed_mz_zip_archive *pZip);

// ZIP archive writing

#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

// Inits a ZIP archive writer.
sed_mz_bool sed_mz_zip_writer_init(sed_mz_zip_archive *pZip, sed_mz_uint64 existing_size);
sed_mz_bool sed_mz_zip_writer_init_heap(sed_mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size);

#ifndef MINIZ_NO_STDIO
sed_mz_bool sed_mz_zip_writer_init_file(sed_mz_zip_archive *pZip, const char *pFilename, sed_mz_uint64 size_to_reserve_at_beginning);
#endif

// Converts a ZIP archive reader object into a writer object, to allow efficient in-place file appends to occur on an existing archive.
// For archives opened using sed_mz_zip_reader_init_file, pFilename must be the archive's filename so it can be reopened for writing. If the file can't be reopened, sed_mz_zip_reader_end() will be called.
// For archives opened using sed_mz_zip_reader_init_mem, the memory block must be growable using the realloc callback (which defaults to realloc unless you've overridden it).
// Finally, for archives opened using sed_mz_zip_reader_init, the sed_mz_zip_archive's user provided m_pWrite function cannot be NULL.
// Note: In-place archive modification is not recommended unless you know what you're doing, because if execution stops or something goes wrong before
// the archive is finalized the file's central directory will be hosed.
sed_mz_bool sed_mz_zip_writer_init_from_reader(sed_mz_zip_archive *pZip, const char *pFilename);

// Adds the contents of a memory buffer to an archive. These functions record the current local time into the archive.
// To add a directory entry, call this method with an archive name ending in a forwardslash with empty buffer.
// level_and_flags - compression level (0-10, see sed_mz_BEST_SPEED, sed_mz_BEST_COMPRESSION, etc.) logically OR'd with zero or more sed_mz_zip_flags, or just set to sed_mz_DEFAULT_COMPRESSION.
sed_mz_bool sed_mz_zip_writer_add_mem(sed_mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, sed_mz_uint level_and_flags);
sed_mz_bool sed_mz_zip_writer_add_mem_ex(sed_mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint level_and_flags, sed_mz_uint64 uncomp_size, sed_mz_uint32 uncomp_crc32);

#ifndef MINIZ_NO_STDIO
// Adds the contents of a disk file to an archive. This function also records the disk file's modified time into the archive.
// level_and_flags - compression level (0-10, see sed_mz_BEST_SPEED, sed_mz_BEST_COMPRESSION, etc.) logically OR'd with zero or more sed_mz_zip_flags, or just set to sed_mz_DEFAULT_COMPRESSION.
sed_mz_bool sed_mz_zip_writer_add_file(sed_mz_zip_archive *pZip, const char *pArchive_name, const char *pSrc_filename, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint level_and_flags);
#endif

// Adds a file to an archive by fully cloning the data from another archive.
// This function fully clones the source file's compressed data (no recompression), along with its full filename, extra data, and comment fields.
sed_mz_bool sed_mz_zip_writer_add_from_zip_reader(sed_mz_zip_archive *pZip, sed_mz_zip_archive *pSource_zip, sed_mz_uint file_index);

// Finalizes the archive by writing the central directory records followed by the end of central directory record.
// After an archive is finalized, the only valid call on the sed_mz_zip_archive struct is sed_mz_zip_writer_end().
// An archive must be manually finalized by calling this function for it to be valid.
sed_mz_bool sed_mz_zip_writer_finalize_archive(sed_mz_zip_archive *pZip);
sed_mz_bool sed_mz_zip_writer_finalize_heap_archive(sed_mz_zip_archive *pZip, void **pBuf, size_t *pSize);

// Ends archive writing, freeing all allocations, and closing the output file if sed_mz_zip_writer_init_file() was used.
// Note for the archive to be valid, it must have been finalized before ending.
sed_mz_bool sed_mz_zip_writer_end(sed_mz_zip_archive *pZip);

// Misc. high-level helper functions:

// sed_mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) appends a memory blob to a ZIP archive.
// level_and_flags - compression level (0-10, see sed_mz_BEST_SPEED, sed_mz_BEST_COMPRESSION, etc.) logically OR'd with zero or more sed_mz_zip_flags, or just set to sed_mz_DEFAULT_COMPRESSION.
sed_mz_bool sed_mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint level_and_flags);

// Reads a single file from an archive into a heap block.
// Returns NULL on failure.
void *sed_mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, sed_mz_uint zip_flags);

#endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

#endif // #ifndef MINIZ_NO_ARCHIVE_APIS

// ------------------- Low-level Decompression API Definitions

// Decompression flags used by sed_tinfl_decompress().
// sed_tinfl_FLAG_PARSE_ZLIB_HEADER: If set, the input has a valid zlib header and ends with an adler32 checksum (it's a valid zlib stream). Otherwise, the input is a raw deflate stream.
// sed_tinfl_FLAG_HAS_MORE_INPUT: If set, there are more input bytes available beyond the end of the supplied input buffer. If clear, the input buffer contains all remaining input.
// sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF: If set, the output buffer is large enough to hold the entire decompressed stream. If clear, the output buffer is at least the size of the dictionary (typically 32KB).
// sed_tinfl_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the decompressed bytes.
enum
{
  sed_tinfl_FLAG_PARSE_ZLIB_HEADER = 1,
  sed_tinfl_FLAG_HAS_MORE_INPUT = 2,
  sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4,
  sed_tinfl_FLAG_COMPUTE_ADLER32 = 8
};

// High level decompression functions:
// sed_tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block allocated via malloc().
// On entry:
//  pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data to decompress.
// On return:
//  Function returns a pointer to the decompressed data, or NULL on failure.
//  *pOut_len will be set to the decompressed data's size, which could be larger than src_buf_len on uncompressible data.
//  The caller must call sed_mz_free() on the returned block when it's no longer needed.
void *sed_tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);

// sed_tinfl_decompress_mem_to_mem() decompresses a block in memory to another block in memory.
// Returns sed_tinfl_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes written on success.
#define sed_tinfl_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1))
size_t sed_tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags);

// sed_tinfl_decompress_mem_to_callback() decompresses a block in memory to an internal 32KB buffer, and a user provided callback function will be called to flush the buffer.
// Returns 1 on success or 0 on failure.
typedef int (*sed_tinfl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser);
int sed_tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, sed_tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);

struct sed_tinfl_decompressor_tag; typedef struct sed_tinfl_decompressor_tag sed_tinfl_decompressor;

// Max size of LZ dictionary.
#define sed_tinfl_LZ_DICT_SIZE 32768

// Return status.
typedef enum
{
  sed_tinfl_STATUS_BAD_PARAM = -3,
  sed_tinfl_STATUS_ADLER32_MISMATCH = -2,
  sed_tinfl_STATUS_FAILED = -1,
  sed_tinfl_STATUS_DONE = 0,
  sed_tinfl_STATUS_NEEDS_MORE_INPUT = 1,
  sed_tinfl_STATUS_HAS_MORE_OUTPUT = 2
} sed_tinfl_status;

// Initializes the decompressor to its initial state.
#define sed_tinfl_init(r) do { (r)->m_state = 0; } sed_mz_MACRO_END
#define sed_tinfl_get_adler32(r) (r)->m_check_adler32

// Main low-level decompressor coroutine function. This is the only function actually needed for decompression. All the other functions are just high-level helpers for improved usability.
// This is a universal API, i.e. it can be used as a building block to build any desired higher level decompression API. In the limit case, it can be called once per every byte input or output.
sed_tinfl_status sed_tinfl_decompress(sed_tinfl_decompressor *r, const sed_mz_uint8 *pIn_buf_next, size_t *pIn_buf_size, sed_mz_uint8 *pOut_buf_start, sed_mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, const sed_mz_uint32 decomp_flags);

// Internal/private bits follow.
enum
{
  sed_tinfl_MAX_HUFF_TABLES = 3, sed_tinfl_MAX_HUFF_SYMBOLS_0 = 288, sed_tinfl_MAX_HUFF_SYMBOLS_1 = 32, sed_tinfl_MAX_HUFF_SYMBOLS_2 = 19,
  sed_tinfl_FAST_LOOKUP_BITS = 10, sed_tinfl_FAST_LOOKUP_SIZE = 1 << sed_tinfl_FAST_LOOKUP_BITS
};

typedef struct
{
  sed_mz_uint8 m_code_size[sed_tinfl_MAX_HUFF_SYMBOLS_0];
  sed_mz_int16 m_look_up[sed_tinfl_FAST_LOOKUP_SIZE], m_tree[sed_tinfl_MAX_HUFF_SYMBOLS_0 * 2];
} sed_tinfl_huff_table;

#if MINIZ_HAS_64BIT_REGISTERS
  #define sed_tinfl_USE_64BIT_BITBUF 1
#endif

#if sed_tinfl_USE_64BIT_BITBUF
  typedef sed_mz_uint64 sed_tinfl_bit_buf_t;
  #define sed_tinfl_BITBUF_SIZE (64)
#else
  typedef sed_mz_uint32 sed_tinfl_bit_buf_t;
  #define sed_tinfl_BITBUF_SIZE (32)
#endif

struct sed_tinfl_decompressor_tag
{
  sed_mz_uint32 m_state, m_num_bits, m_zhdr0, m_zhdr1, m_z_adler32, m_final, m_type, m_check_adler32, m_dist, m_counter, m_num_extra, m_table_sizes[sed_tinfl_MAX_HUFF_TABLES];
  sed_tinfl_bit_buf_t m_bit_buf;
  size_t m_dist_from_out_buf_start;
  sed_tinfl_huff_table m_tables[sed_tinfl_MAX_HUFF_TABLES];
  sed_mz_uint8 m_raw_header[4], m_len_codes[sed_tinfl_MAX_HUFF_SYMBOLS_0 + sed_tinfl_MAX_HUFF_SYMBOLS_1 + 137];
};

// ------------------- Low-level Compression API Definitions

// Set sed_tdefl_LESS_MEMORY to 1 to use less memory (compression will be slightly slower, and raw/dynamic blocks will be output more frequently).
#define sed_tdefl_LESS_MEMORY 0

// sed_tdefl_init() compression flags logically OR'd together (low 12 bits contain the max. number of probes per dictionary search):
// sed_tdefl_DEFAULT_MAX_PROBES: The compressor defaults to 128 dictionary probes per dictionary search. 0=Huffman only, 1=Huffman+LZ (fastest/crap compression), 4095=Huffman+LZ (slowest/best compression).
enum
{
  sed_tdefl_HUFFMAN_ONLY = 0, sed_tdefl_DEFAULT_MAX_PROBES = 128, sed_tdefl_MAX_PROBES_MASK = 0xFFF
};

// sed_tdefl_WRITE_ZLIB_HEADER: If set, the compressor outputs a zlib header before the deflate data, and the Adler-32 of the source data at the end. Otherwise, you'll get raw deflate data.
// sed_tdefl_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even when not writing zlib headers).
// sed_tdefl_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more efficient lazy parsing.
// sed_tdefl_NONDETERMINISTIC_PARSING_FLAG: Enable to decrease the compressor's initialization time to the minimum, but the output may vary from run to run given the same input (depending on the contents of memory).
// sed_tdefl_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1)
// sed_tdefl_FILTER_MATCHES: Discards matches <= 5 chars if enabled.
// sed_tdefl_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables.
// sed_tdefl_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks.
// The low 12 bits are reserved to control the max # of hash probes per dictionary lookup (see sed_tdefl_MAX_PROBES_MASK).
enum
{
  sed_tdefl_WRITE_ZLIB_HEADER             = 0x01000,
  sed_tdefl_COMPUTE_ADLER32               = 0x02000,
  sed_tdefl_GREEDY_PARSING_FLAG           = 0x04000,
  sed_tdefl_NONDETERMINISTIC_PARSING_FLAG = 0x08000,
  sed_tdefl_RLE_MATCHES                   = 0x10000,
  sed_tdefl_FILTER_MATCHES                = 0x20000,
  sed_tdefl_FORCE_ALL_STATIC_BLOCKS       = 0x40000,
  sed_tdefl_FORCE_ALL_RAW_BLOCKS          = 0x80000
};

// High level compression functions:
// sed_tdefl_compress_mem_to_heap() compresses a block in memory to a heap block allocated via malloc().
// On entry:
//  pSrc_buf, src_buf_len: Pointer and size of source block to compress.
//  flags: The max match finder probes (default is 128) logically OR'd against the above flags. Higher probes are slower but improve compression.
// On return:
//  Function returns a pointer to the compressed data, or NULL on failure.
//  *pOut_len will be set to the compressed data's size, which could be larger than src_buf_len on uncompressible data.
//  The caller must free() the returned block when it's no longer needed.
void *sed_tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);

// sed_tdefl_compress_mem_to_mem() compresses a block in memory to another block in memory.
// Returns 0 on failure.
size_t sed_tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags);

// Compresses an image to a compressed PNG file in memory.
// On entry:
//  pImage, w, h, and num_chans describe the image to compress. num_chans may be 1, 2, 3, or 4. 
//  The image pitch in bytes per scanline will be w*num_chans. The leftmost pixel on the top scanline is stored first in memory.
//  level may range from [0,10], use sed_mz_NO_COMPRESSION, sed_mz_BEST_SPEED, sed_mz_BEST_COMPRESSION, etc. or a decent default is sed_mz_DEFAULT_LEVEL
//  If flip is true, the image will be flipped on the Y axis (useful for OpenGL apps).
// On return:
//  Function returns a pointer to the compressed data, or NULL on failure.
//  *pLen_out will be set to the size of the PNG image file.
//  The caller must sed_mz_free() the returned heap block (which will typically be larger than *pLen_out) when it's no longer needed.
void *sed_tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int h, int num_chans, size_t *pLen_out, sed_mz_uint level, sed_mz_bool flip);
void *sed_tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out);

// Output stream interface. The compressor uses this interface to write compressed data. It'll typically be called sed_tdefl_OUT_BUF_SIZE at a time.
typedef sed_mz_bool (*sed_tdefl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser);

// sed_tdefl_compress_mem_to_output() compresses a block to an output stream. The above helpers use this function internally.
sed_mz_bool sed_tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, sed_tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);

enum { sed_tdefl_MAX_HUFF_TABLES = 3, sed_tdefl_MAX_HUFF_SYMBOLS_0 = 288, sed_tdefl_MAX_HUFF_SYMBOLS_1 = 32, sed_tdefl_MAX_HUFF_SYMBOLS_2 = 19, sed_tdefl_LZ_DICT_SIZE = 32768, sed_tdefl_LZ_DICT_SIZE_MASK = sed_tdefl_LZ_DICT_SIZE - 1, sed_tdefl_MIN_MATCH_LEN = 3, sed_tdefl_MAX_MATCH_LEN = 258 };

// sed_tdefl_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed output block (using static/fixed Huffman codes).
#if sed_tdefl_LESS_MEMORY
enum { sed_tdefl_LZ_CODE_BUF_SIZE = 24 * 1024, sed_tdefl_OUT_BUF_SIZE = (sed_tdefl_LZ_CODE_BUF_SIZE * 13 ) / 10, sed_tdefl_MAX_HUFF_SYMBOLS = 288, sed_tdefl_LZ_HASH_BITS = 12, sed_tdefl_LEVEL1_HASH_SIZE_MASK = 4095, sed_tdefl_LZ_HASH_SHIFT = (sed_tdefl_LZ_HASH_BITS + 2) / 3, sed_tdefl_LZ_HASH_SIZE = 1 << sed_tdefl_LZ_HASH_BITS };
#else
enum { sed_tdefl_LZ_CODE_BUF_SIZE = 64 * 1024, sed_tdefl_OUT_BUF_SIZE = (sed_tdefl_LZ_CODE_BUF_SIZE * 13 ) / 10, sed_tdefl_MAX_HUFF_SYMBOLS = 288, sed_tdefl_LZ_HASH_BITS = 15, sed_tdefl_LEVEL1_HASH_SIZE_MASK = 4095, sed_tdefl_LZ_HASH_SHIFT = (sed_tdefl_LZ_HASH_BITS + 2) / 3, sed_tdefl_LZ_HASH_SIZE = 1 << sed_tdefl_LZ_HASH_BITS };
#endif

// The low-level sed_tdefl functions below may be used directly if the above helper functions aren't flexible enough. The low-level functions don't make any heap allocations, unlike the above helper functions.
typedef enum
{
  sed_tdefl_STATUS_BAD_PARAM = -2,
  sed_tdefl_STATUS_PUT_BUF_FAILED = -1,
  sed_tdefl_STATUS_OKAY = 0,
  sed_tdefl_STATUS_DONE = 1,
} sed_tdefl_status;

// Must map to sed_mz_NO_FLUSH, sed_mz_SYNC_FLUSH, etc. enums
typedef enum
{
  sed_tdefl_NO_FLUSH = 0,
  sed_tdefl_SYNC_FLUSH = 2,
  sed_tdefl_FULL_FLUSH = 3,
  sed_tdefl_FINISH = 4
} sed_tdefl_flush;

// sed_tdefl's compression state structure.
typedef struct
{
  sed_tdefl_put_buf_func_ptr m_pPut_buf_func;
  void *m_pPut_buf_user;
  sed_mz_uint m_flags, m_max_probes[2];
  int m_greedy_parsing;
  sed_mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size;
  sed_mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end;
  sed_mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, m_bit_buffer;
  sed_mz_uint m_saved_match_dist, m_saved_match_len, m_saved_lit, m_output_flush_ofs, m_output_flush_remaining, m_finished, m_block_index, m_wants_to_finish;
  sed_tdefl_status m_prev_return_status;
  const void *m_pIn_buf;
  void *m_pOut_buf;
  size_t *m_pIn_buf_size, *m_pOut_buf_size;
  sed_tdefl_flush m_flush;
  const sed_mz_uint8 *m_pSrc;
  size_t m_src_buf_left, m_out_buf_ofs;
  sed_mz_uint8 m_dict[sed_tdefl_LZ_DICT_SIZE + sed_tdefl_MAX_MATCH_LEN - 1];
  sed_mz_uint16 m_huff_count[sed_tdefl_MAX_HUFF_TABLES][sed_tdefl_MAX_HUFF_SYMBOLS];
  sed_mz_uint16 m_huff_codes[sed_tdefl_MAX_HUFF_TABLES][sed_tdefl_MAX_HUFF_SYMBOLS];
  sed_mz_uint8 m_huff_code_sizes[sed_tdefl_MAX_HUFF_TABLES][sed_tdefl_MAX_HUFF_SYMBOLS];
  sed_mz_uint8 m_lz_code_buf[sed_tdefl_LZ_CODE_BUF_SIZE];
  sed_mz_uint16 m_next[sed_tdefl_LZ_DICT_SIZE];
  sed_mz_uint16 m_hash[sed_tdefl_LZ_HASH_SIZE];
  sed_mz_uint8 m_output_buf[sed_tdefl_OUT_BUF_SIZE];
} sed_tdefl_compressor;

// Initializes the compressor.
// There is no corresponding deinit() function because the sed_tdefl API's do not dynamically allocate memory.
// pBut_buf_func: If NULL, output data will be supplied to the specified callback. In this case, the user should call the sed_tdefl_compress_buffer() API for compression.
// If pBut_buf_func is NULL the user should always call the sed_tdefl_compress() API.
// flags: See the above enums (sed_tdefl_HUFFMAN_ONLY, sed_tdefl_WRITE_ZLIB_HEADER, etc.)
sed_tdefl_status sed_tdefl_init(sed_tdefl_compressor *d, sed_tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);

// Compresses a block of data, consuming as much of the specified input buffer as possible, and writing as much compressed data to the specified output buffer as possible.
sed_tdefl_status sed_tdefl_compress(sed_tdefl_compressor *d, const void *pIn_buf, size_t *pIn_buf_size, void *pOut_buf, size_t *pOut_buf_size, sed_tdefl_flush flush);

// sed_tdefl_compress_buffer() is only usable when the sed_tdefl_init() is called with a non-NULL sed_tdefl_put_buf_func_ptr.
// sed_tdefl_compress_buffer() always consumes the entire input buffer.
sed_tdefl_status sed_tdefl_compress_buffer(sed_tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, sed_tdefl_flush flush);

sed_tdefl_status sed_tdefl_get_prev_return_status(sed_tdefl_compressor *d);
sed_mz_uint32 sed_tdefl_get_adler32(sed_tdefl_compressor *d);

// Can't use sed_tdefl_create_comp_flags_from_zip_params if MINIZ_NO_ZLIB_APIS isn't defined, because it uses some of its macros.
#ifndef MINIZ_NO_ZLIB_APIS
// Create sed_tdefl_compress() flags given zlib-style compression parameters.
// level may range from [0,10] (where 10 is absolute max compression, but may be much slower on some files)
// window_bits may be -15 (raw deflate) or 15 (zlib)
// strategy may be either sed_mz_DEFAULT_STRATEGY, sed_mz_FILTERED, sed_mz_HUFFMAN_ONLY, sed_mz_RLE, or sed_mz_FIXED
sed_mz_uint sed_tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy);
#endif // #ifndef MINIZ_NO_ZLIB_APIS

#ifdef __cplusplus
}
#endif

#endif // MINIZ_HEADER_INCLUDED

// ------------------- End of Header: Implementation follows. (If you only want the header, define MINIZ_HEADER_FILE_ONLY.)

#ifndef MINIZ_HEADER_FILE_ONLY

typedef unsigned char sed_mz_validate_uint16[sizeof(sed_mz_uint16)==2 ? 1 : -1];
typedef unsigned char sed_mz_validate_uint32[sizeof(sed_mz_uint32)==4 ? 1 : -1];
typedef unsigned char sed_mz_validate_uint64[sizeof(sed_mz_uint64)==8 ? 1 : -1];

#include <string.h>
#include <assert.h>

#define sed_mz_ASSERT(x) assert(x)

#ifdef MINIZ_NO_MALLOC
  #define sed_mz_MALLOC(x) NULL
  #define sed_mz_FREE(x) (void)x, ((void)0)
  #define sed_mz_REALLOC(p, x) NULL
#else
  #define sed_mz_MALLOC(x) malloc(x)
  #define sed_mz_FREE(x) free(x)
  #define sed_mz_REALLOC(p, x) realloc(p, x)
#endif

#define sed_mz_MAX(a,b) (((a)>(b))?(a):(b))
#define sed_mz_MIN(a,b) (((a)<(b))?(a):(b))
#define sed_mz_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj))

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
  #define sed_mz_READ_LE16(p) *((const sed_mz_uint16 *)(p))
  #define sed_mz_READ_LE32(p) *((const sed_mz_uint32 *)(p))
#else
  #define sed_mz_READ_LE16(p) ((sed_mz_uint32)(((const sed_mz_uint8 *)(p))[0]) | ((sed_mz_uint32)(((const sed_mz_uint8 *)(p))[1]) << 8U))
  #define sed_mz_READ_LE32(p) ((sed_mz_uint32)(((const sed_mz_uint8 *)(p))[0]) | ((sed_mz_uint32)(((const sed_mz_uint8 *)(p))[1]) << 8U) | ((sed_mz_uint32)(((const sed_mz_uint8 *)(p))[2]) << 16U) | ((sed_mz_uint32)(((const sed_mz_uint8 *)(p))[3]) << 24U))
#endif

#ifdef _MSC_VER
  #define sed_mz_FORCEINLINE __forceinline
#elif defined(__GNUC__)
  #define sed_mz_FORCEINLINE inline __attribute__((__always_inline__))
#else
  #define sed_mz_FORCEINLINE inline
#endif

#ifdef __cplusplus
  extern "C" {
#endif

// ------------------- zlib-style API's

sed_mz_ulong sed_mz_adler32(sed_mz_ulong adler, const unsigned char *ptr, size_t buf_len)
{
  sed_mz_uint32 i, s1 = (sed_mz_uint32)(adler & 0xffff), s2 = (sed_mz_uint32)(adler >> 16); size_t block_len = buf_len % 5552;
  if (!ptr) return sed_mz_ADLER32_INIT;
  while (buf_len) {
    for (i = 0; i + 7 < block_len; i += 8, ptr += 8) {
      s1 += ptr[0], s2 += s1; s1 += ptr[1], s2 += s1; s1 += ptr[2], s2 += s1; s1 += ptr[3], s2 += s1;
      s1 += ptr[4], s2 += s1; s1 += ptr[5], s2 += s1; s1 += ptr[6], s2 += s1; s1 += ptr[7], s2 += s1;
    }
    for ( ; i < block_len; ++i) s1 += *ptr++, s2 += s1;
    s1 %= 65521U, s2 %= 65521U; buf_len -= block_len; block_len = 5552;
  }
  return (s2 << 16) + s1;
}

// Karl Malbrain's compact CRC-32. See "A compact CCITT crc16 and crc32 C implementation that balances processor cache usage against speed": http://www.geocities.com/malbrain/
sed_mz_ulong sed_mz_crc32(sed_mz_ulong crc, const sed_mz_uint8 *ptr, size_t buf_len)
{
  static const sed_mz_uint32 s_crc32[16] = { 0, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
    0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c };
  sed_mz_uint32 crcu32 = (sed_mz_uint32)crc;
  if (!ptr) return sed_mz_CRC32_INIT;
  crcu32 = ~crcu32; while (buf_len--) { sed_mz_uint8 b = *ptr++; crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b & 0xF)]; crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b >> 4)]; }
  return ~crcu32;
}

void sed_mz_free(void *p)
{
  sed_mz_FREE(p);
}

#ifndef MINIZ_NO_ZLIB_APIS

static void *def_alloc_func(void *opaque, size_t items, size_t size) { (void)opaque, (void)items, (void)size; return sed_mz_MALLOC(items * size); }
static void def_free_func(void *opaque, void *address) { (void)opaque, (void)address; sed_mz_FREE(address); }
static void *def_realloc_func(void *opaque, void *address, size_t items, size_t size) { (void)opaque, (void)address, (void)items, (void)size; return sed_mz_REALLOC(address, items * size); }

const char *sed_mz_version(void)
{
  return sed_mz_VERSION;
}

int sed_mz_deflateInit(sed_mz_streamp pStream, int level)
{
  return sed_mz_deflateInit2(pStream, level, sed_mz_DEFLATED, sed_mz_DEFAULT_WINDOW_BITS, 9, sed_mz_DEFAULT_STRATEGY);
}

int sed_mz_deflateInit2(sed_mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy)
{
  sed_tdefl_compressor *pComp;
  sed_mz_uint comp_flags = sed_tdefl_COMPUTE_ADLER32 | sed_tdefl_create_comp_flags_from_zip_params(level, window_bits, strategy);

  if (!pStream) return sed_mz_STREAM_ERROR;
  if ((method != sed_mz_DEFLATED) || ((mem_level < 1) || (mem_level > 9)) || ((window_bits != sed_mz_DEFAULT_WINDOW_BITS) && (-window_bits != sed_mz_DEFAULT_WINDOW_BITS))) return sed_mz_PARAM_ERROR;

  pStream->data_type = 0;
  pStream->adler = sed_mz_ADLER32_INIT;
  pStream->msg = NULL;
  pStream->reserved = 0;
  pStream->total_in = 0;
  pStream->total_out = 0;
  if (!pStream->zalloc) pStream->zalloc = def_alloc_func;
  if (!pStream->zfree) pStream->zfree = def_free_func;

  pComp = (sed_tdefl_compressor *)pStream->zalloc(pStream->opaque, 1, sizeof(sed_tdefl_compressor));
  if (!pComp)
    return sed_mz_MEM_ERROR;

  pStream->state = (struct sed_mz_internal_state *)pComp;

  if (sed_tdefl_init(pComp, NULL, NULL, comp_flags) != sed_tdefl_STATUS_OKAY)
  {
    sed_mz_deflateEnd(pStream);
    return sed_mz_PARAM_ERROR;
  }

  return sed_mz_OK;
}

int sed_mz_deflateReset(sed_mz_streamp pStream)
{
  if ((!pStream) || (!pStream->state) || (!pStream->zalloc) || (!pStream->zfree)) return sed_mz_STREAM_ERROR;
  pStream->total_in = pStream->total_out = 0;
  sed_tdefl_init((sed_tdefl_compressor*)pStream->state, NULL, NULL, ((sed_tdefl_compressor*)pStream->state)->m_flags);
  return sed_mz_OK;
}

int sed_mz_deflate(sed_mz_streamp pStream, int flush)
{
  size_t in_bytes, out_bytes;
  sed_mz_ulong orig_total_in, orig_total_out;
  int sed_mz_status = sed_mz_OK;

  if ((!pStream) || (!pStream->state) || (flush < 0) || (flush > sed_mz_FINISH) || (!pStream->next_out)) return sed_mz_STREAM_ERROR;
  if (!pStream->avail_out) return sed_mz_BUF_ERROR;

  if (flush == sed_mz_PARTIAL_FLUSH) flush = sed_mz_SYNC_FLUSH;

  if (((sed_tdefl_compressor*)pStream->state)->m_prev_return_status == sed_tdefl_STATUS_DONE)
    return (flush == sed_mz_FINISH) ? sed_mz_STREAM_END : sed_mz_BUF_ERROR;

  orig_total_in = pStream->total_in; orig_total_out = pStream->total_out;
  for ( ; ; )
  {
    sed_tdefl_status defl_status;
    in_bytes = pStream->avail_in; out_bytes = pStream->avail_out;

    defl_status = sed_tdefl_compress((sed_tdefl_compressor*)pStream->state, pStream->next_in, &in_bytes, pStream->next_out, &out_bytes, (sed_tdefl_flush)flush);
    pStream->next_in += (sed_mz_uint)in_bytes; pStream->avail_in -= (sed_mz_uint)in_bytes;
    pStream->total_in += (sed_mz_uint)in_bytes; pStream->adler = sed_tdefl_get_adler32((sed_tdefl_compressor*)pStream->state);

    pStream->next_out += (sed_mz_uint)out_bytes; pStream->avail_out -= (sed_mz_uint)out_bytes;
    pStream->total_out += (sed_mz_uint)out_bytes;

    if (defl_status < 0)
    {
      sed_mz_status = sed_mz_STREAM_ERROR;
      break;
    }
    else if (defl_status == sed_tdefl_STATUS_DONE)
    {
      sed_mz_status = sed_mz_STREAM_END;
      break;
    }
    else if (!pStream->avail_out)
      break;
    else if ((!pStream->avail_in) && (flush != sed_mz_FINISH))
    {
      if ((flush) || (pStream->total_in != orig_total_in) || (pStream->total_out != orig_total_out))
        break;
      return sed_mz_BUF_ERROR; // Can't make forward progress without some input.
    }
  }
  return sed_mz_status;
}

int sed_mz_deflateEnd(sed_mz_streamp pStream)
{
  if (!pStream) return sed_mz_STREAM_ERROR;
  if (pStream->state)
  {
    pStream->zfree(pStream->opaque, pStream->state);
    pStream->state = NULL;
  }
  return sed_mz_OK;
}

sed_mz_ulong sed_mz_deflateBound(sed_mz_streamp pStream, sed_mz_ulong source_len)
{
  (void)pStream;
  // This is really over conservative. (And lame, but it's actually pretty tricky to compute a true upper bound given the way sed_tdefl's blocking works.)
  return sed_mz_MAX(128 + (source_len * 110) / 100, 128 + source_len + ((source_len / (31 * 1024)) + 1) * 5);
}

int sed_mz_compress2(unsigned char *pDest, sed_mz_ulong *pDest_len, const unsigned char *pSource, sed_mz_ulong source_len, int level)
{
  int status;
  sed_mz_stream stream;
  memset(&stream, 0, sizeof(stream));

  // In case sed_mz_ulong is 64-bits (argh I hate longs).
  if ((source_len | *pDest_len) > 0xFFFFFFFFU) return sed_mz_PARAM_ERROR;

  stream.next_in = pSource;
  stream.avail_in = (sed_mz_uint32)source_len;
  stream.next_out = pDest;
  stream.avail_out = (sed_mz_uint32)*pDest_len;

  status = sed_mz_deflateInit(&stream, level);
  if (status != sed_mz_OK) return status;

  status = sed_mz_deflate(&stream, sed_mz_FINISH);
  if (status != sed_mz_STREAM_END)
  {
    sed_mz_deflateEnd(&stream);
    return (status == sed_mz_OK) ? sed_mz_BUF_ERROR : status;
  }

  *pDest_len = stream.total_out;
  return sed_mz_deflateEnd(&stream);
}

int sed_mz_compress(unsigned char *pDest, sed_mz_ulong *pDest_len, const unsigned char *pSource, sed_mz_ulong source_len)
{
  return sed_mz_compress2(pDest, pDest_len, pSource, source_len, sed_mz_DEFAULT_COMPRESSION);
}

sed_mz_ulong sed_mz_compressBound(sed_mz_ulong source_len)
{
  return sed_mz_deflateBound(NULL, source_len);
}

typedef struct
{
  sed_tinfl_decompressor m_decomp;
  sed_mz_uint m_dict_ofs, m_dict_avail, m_first_call, m_has_flushed; int m_window_bits;
  sed_mz_uint8 m_dict[sed_tinfl_LZ_DICT_SIZE];
  sed_tinfl_status m_last_status;
} inflate_state;

int sed_mz_inflateInit2(sed_mz_streamp pStream, int window_bits)
{
  inflate_state *pDecomp;
  if (!pStream) return sed_mz_STREAM_ERROR;
  if ((window_bits != sed_mz_DEFAULT_WINDOW_BITS) && (-window_bits != sed_mz_DEFAULT_WINDOW_BITS)) return sed_mz_PARAM_ERROR;

  pStream->data_type = 0;
  pStream->adler = 0;
  pStream->msg = NULL;
  pStream->total_in = 0;
  pStream->total_out = 0;
  pStream->reserved = 0;
  if (!pStream->zalloc) pStream->zalloc = def_alloc_func;
  if (!pStream->zfree) pStream->zfree = def_free_func;

  pDecomp = (inflate_state*)pStream->zalloc(pStream->opaque, 1, sizeof(inflate_state));
  if (!pDecomp) return sed_mz_MEM_ERROR;

  pStream->state = (struct sed_mz_internal_state *)pDecomp;

  sed_tinfl_init(&pDecomp->m_decomp);
  pDecomp->m_dict_ofs = 0;
  pDecomp->m_dict_avail = 0;
  pDecomp->m_last_status = sed_tinfl_STATUS_NEEDS_MORE_INPUT;
  pDecomp->m_first_call = 1;
  pDecomp->m_has_flushed = 0;
  pDecomp->m_window_bits = window_bits;

  return sed_mz_OK;
}

int sed_mz_inflateInit(sed_mz_streamp pStream)
{
   return sed_mz_inflateInit2(pStream, sed_mz_DEFAULT_WINDOW_BITS);
}

int sed_mz_inflate(sed_mz_streamp pStream, int flush)
{
  inflate_state* pState;
  sed_mz_uint n, first_call, decomp_flags = sed_tinfl_FLAG_COMPUTE_ADLER32;
  size_t in_bytes, out_bytes, orig_avail_in;
  sed_tinfl_status status;

  if ((!pStream) || (!pStream->state)) return sed_mz_STREAM_ERROR;
  if (flush == sed_mz_PARTIAL_FLUSH) flush = sed_mz_SYNC_FLUSH;
  if ((flush) && (flush != sed_mz_SYNC_FLUSH) && (flush != sed_mz_FINISH)) return sed_mz_STREAM_ERROR;

  pState = (inflate_state*)pStream->state;
  if (pState->m_window_bits > 0) decomp_flags |= sed_tinfl_FLAG_PARSE_ZLIB_HEADER;
  orig_avail_in = pStream->avail_in;

  first_call = pState->m_first_call; pState->m_first_call = 0;
  if (pState->m_last_status < 0) return sed_mz_DATA_ERROR;

  if (pState->m_has_flushed && (flush != sed_mz_FINISH)) return sed_mz_STREAM_ERROR;
  pState->m_has_flushed |= (flush == sed_mz_FINISH);

  if ((flush == sed_mz_FINISH) && (first_call))
  {
    // sed_mz_FINISH on the first call implies that the input and output buffers are large enough to hold the entire compressed/decompressed file.
    decomp_flags |= sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF;
    in_bytes = pStream->avail_in; out_bytes = pStream->avail_out;
    status = sed_tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pStream->next_out, pStream->next_out, &out_bytes, decomp_flags);
    pState->m_last_status = status;
    pStream->next_in += (sed_mz_uint)in_bytes; pStream->avail_in -= (sed_mz_uint)in_bytes; pStream->total_in += (sed_mz_uint)in_bytes;
    pStream->adler = sed_tinfl_get_adler32(&pState->m_decomp);
    pStream->next_out += (sed_mz_uint)out_bytes; pStream->avail_out -= (sed_mz_uint)out_bytes; pStream->total_out += (sed_mz_uint)out_bytes;

    if (status < 0)
      return sed_mz_DATA_ERROR;
    else if (status != sed_tinfl_STATUS_DONE)
    {
      pState->m_last_status = sed_tinfl_STATUS_FAILED;
      return sed_mz_BUF_ERROR;
    }
    return sed_mz_STREAM_END;
  }
  // flush != sed_mz_FINISH then we must assume there's more input.
  if (flush != sed_mz_FINISH) decomp_flags |= sed_tinfl_FLAG_HAS_MORE_INPUT;

  if (pState->m_dict_avail)
  {
    n = sed_mz_MIN(pState->m_dict_avail, pStream->avail_out);
    memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
    pStream->next_out += n; pStream->avail_out -= n; pStream->total_out += n;
    pState->m_dict_avail -= n; pState->m_dict_ofs = (pState->m_dict_ofs + n) & (sed_tinfl_LZ_DICT_SIZE - 1);
    return ((pState->m_last_status == sed_tinfl_STATUS_DONE) && (!pState->m_dict_avail)) ? sed_mz_STREAM_END : sed_mz_OK;
  }

  for ( ; ; )
  {
    in_bytes = pStream->avail_in;
    out_bytes = sed_tinfl_LZ_DICT_SIZE - pState->m_dict_ofs;

    status = sed_tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pState->m_dict, pState->m_dict + pState->m_dict_ofs, &out_bytes, decomp_flags);
    pState->m_last_status = status;

    pStream->next_in += (sed_mz_uint)in_bytes; pStream->avail_in -= (sed_mz_uint)in_bytes;
    pStream->total_in += (sed_mz_uint)in_bytes; pStream->adler = sed_tinfl_get_adler32(&pState->m_decomp);

    pState->m_dict_avail = (sed_mz_uint)out_bytes;

    n = sed_mz_MIN(pState->m_dict_avail, pStream->avail_out);
    memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
    pStream->next_out += n; pStream->avail_out -= n; pStream->total_out += n;
    pState->m_dict_avail -= n; pState->m_dict_ofs = (pState->m_dict_ofs + n) & (sed_tinfl_LZ_DICT_SIZE - 1);

    if (status < 0)
       return sed_mz_DATA_ERROR; // Stream is corrupted (there could be some uncompressed data left in the output dictionary - oh well).
    else if ((status == sed_tinfl_STATUS_NEEDS_MORE_INPUT) && (!orig_avail_in))
      return sed_mz_BUF_ERROR; // Signal caller that we can't make forward progress without supplying more input or by setting flush to sed_mz_FINISH.
    else if (flush == sed_mz_FINISH)
    {
       // The output buffer MUST be large to hold the remaining uncompressed data when flush==sed_mz_FINISH.
       if (status == sed_tinfl_STATUS_DONE)
          return pState->m_dict_avail ? sed_mz_BUF_ERROR : sed_mz_STREAM_END;
       // status here must be sed_tinfl_STATUS_HAS_MORE_OUTPUT, which means there's at least 1 more byte on the way. If there's no more room left in the output buffer then something is wrong.
       else if (!pStream->avail_out)
          return sed_mz_BUF_ERROR;
    }
    else if ((status == sed_tinfl_STATUS_DONE) || (!pStream->avail_in) || (!pStream->avail_out) || (pState->m_dict_avail))
      break;
  }

  return ((status == sed_tinfl_STATUS_DONE) && (!pState->m_dict_avail)) ? sed_mz_STREAM_END : sed_mz_OK;
}

int sed_mz_inflateEnd(sed_mz_streamp pStream)
{
  if (!pStream)
    return sed_mz_STREAM_ERROR;
  if (pStream->state)
  {
    pStream->zfree(pStream->opaque, pStream->state);
    pStream->state = NULL;
  }
  return sed_mz_OK;
}

int sed_mz_uncompress(unsigned char *pDest, sed_mz_ulong *pDest_len, const unsigned char *pSource, sed_mz_ulong source_len)
{
  sed_mz_stream stream;
  int status;
  memset(&stream, 0, sizeof(stream));

  // In case sed_mz_ulong is 64-bits (argh I hate longs).
  if ((source_len | *pDest_len) > 0xFFFFFFFFU) return sed_mz_PARAM_ERROR;

  stream.next_in = pSource;
  stream.avail_in = (sed_mz_uint32)source_len;
  stream.next_out = pDest;
  stream.avail_out = (sed_mz_uint32)*pDest_len;

  status = sed_mz_inflateInit(&stream);
  if (status != sed_mz_OK)
    return status;

  status = sed_mz_inflate(&stream, sed_mz_FINISH);
  if (status != sed_mz_STREAM_END)
  {
    sed_mz_inflateEnd(&stream);
    return ((status == sed_mz_BUF_ERROR) && (!stream.avail_in)) ? sed_mz_DATA_ERROR : status;
  }
  *pDest_len = stream.total_out;

  return sed_mz_inflateEnd(&stream);
}

const char *sed_mz_error(int err)
{
  static struct { int m_err; const char *m_pDesc; } s_error_descs[] =
  {
    { sed_mz_OK, "" }, { sed_mz_STREAM_END, "stream end" }, { sed_mz_NEED_DICT, "need dictionary" }, { sed_mz_ERRNO, "file error" }, { sed_mz_STREAM_ERROR, "stream error" },
    { sed_mz_DATA_ERROR, "data error" }, { sed_mz_MEM_ERROR, "out of memory" }, { sed_mz_BUF_ERROR, "buf error" }, { sed_mz_VERSION_ERROR, "version error" }, { sed_mz_PARAM_ERROR, "parameter error" }
  };
  sed_mz_uint i; for (i = 0; i < sizeof(s_error_descs) / sizeof(s_error_descs[0]); ++i) if (s_error_descs[i].m_err == err) return s_error_descs[i].m_pDesc;
  return NULL;
}

#endif //MINIZ_NO_ZLIB_APIS

// ------------------- Low-level Decompression (completely independent from all compression API's)

#define sed_tinfl_MEMCPY(d, s, l) memcpy(d, s, l)
#define sed_tinfl_MEMSET(p, c, l) memset(p, c, l)

#define sed_tinfl_CR_BEGIN switch(r->m_state) { case 0:
#define sed_tinfl_CR_RETURN(state_index, result) do { status = result; r->m_state = state_index; goto common_exit; case state_index:; } sed_mz_MACRO_END
#define sed_tinfl_CR_RETURN_FOREVER(state_index, result) do { for ( ; ; ) { sed_tinfl_CR_RETURN(state_index, result); } } sed_mz_MACRO_END
#define sed_tinfl_CR_FINISH }

// TODO: If the caller has indicated that there's no more input, and we attempt to read beyond the input buf, then something is wrong with the input because the inflator never
// reads ahead more than it needs to. Currently sed_tinfl_GET_BYTE() pads the end of the stream with 0's in this scenario.
#define sed_tinfl_GET_BYTE(state_index, c) do { \
  if (pIn_buf_cur >= pIn_buf_end) { \
    for ( ; ; ) { \
      if (decomp_flags & sed_tinfl_FLAG_HAS_MORE_INPUT) { \
        sed_tinfl_CR_RETURN(state_index, sed_tinfl_STATUS_NEEDS_MORE_INPUT); \
        if (pIn_buf_cur < pIn_buf_end) { \
          c = *pIn_buf_cur++; \
          break; \
        } \
      } else { \
        c = 0; \
        break; \
      } \
    } \
  } else c = *pIn_buf_cur++; } sed_mz_MACRO_END

#define sed_tinfl_NEED_BITS(state_index, n) do { sed_mz_uint c; sed_tinfl_GET_BYTE(state_index, c); bit_buf |= (((sed_tinfl_bit_buf_t)c) << num_bits); num_bits += 8; } while (num_bits < (sed_mz_uint)(n))
#define sed_tinfl_SKIP_BITS(state_index, n) do { if (num_bits < (sed_mz_uint)(n)) { sed_tinfl_NEED_BITS(state_index, n); } bit_buf >>= (n); num_bits -= (n); } sed_mz_MACRO_END
#define sed_tinfl_GET_BITS(state_index, b, n) do { if (num_bits < (sed_mz_uint)(n)) { sed_tinfl_NEED_BITS(state_index, n); } b = bit_buf & ((1 << (n)) - 1); bit_buf >>= (n); num_bits -= (n); } sed_mz_MACRO_END

// sed_tinfl_HUFF_BITBUF_FILL() is only used rarely, when the number of bytes remaining in the input buffer falls below 2.
// It reads just enough bytes from the input stream that are needed to decode the next Huffman code (and absolutely no more). It works by trying to fully decode a
// Huffman code by using whatever bits are currently present in the bit buffer. If this fails, it reads another byte, and tries again until it succeeds or until the
// bit buffer contains >=15 bits (deflate's max. Huffman code size).
#define sed_tinfl_HUFF_BITBUF_FILL(state_index, pHuff) \
  do { \
    temp = (pHuff)->m_look_up[bit_buf & (sed_tinfl_FAST_LOOKUP_SIZE - 1)]; \
    if (temp >= 0) { \
      code_len = temp >> 9; \
      if ((code_len) && (num_bits >= code_len)) \
      break; \
    } else if (num_bits > sed_tinfl_FAST_LOOKUP_BITS) { \
       code_len = sed_tinfl_FAST_LOOKUP_BITS; \
       do { \
          temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; \
       } while ((temp < 0) && (num_bits >= (code_len + 1))); if (temp >= 0) break; \
    } sed_tinfl_GET_BYTE(state_index, c); bit_buf |= (((sed_tinfl_bit_buf_t)c) << num_bits); num_bits += 8; \
  } while (num_bits < 15);

// sed_tinfl_HUFF_DECODE() decodes the next Huffman coded symbol. It's more complex than you would initially expect because the zlib API expects the decompressor to never read
// beyond the final byte of the deflate stream. (In other words, when this macro wants to read another byte from the input, it REALLY needs another byte in order to fully
// decode the next Huffman code.) Handling this properly is particularly important on raw deflate (non-zlib) streams, which aren't followed by a byte aligned adler-32.
// The slow path is only executed at the very end of the input buffer.
#define sed_tinfl_HUFF_DECODE(state_index, sym, pHuff) do { \
  int temp; sed_mz_uint code_len, c; \
  if (num_bits < 15) { \
    if ((pIn_buf_end - pIn_buf_cur) < 2) { \
       sed_tinfl_HUFF_BITBUF_FILL(state_index, pHuff); \
    } else { \
       bit_buf |= (((sed_tinfl_bit_buf_t)pIn_buf_cur[0]) << num_bits) | (((sed_tinfl_bit_buf_t)pIn_buf_cur[1]) << (num_bits + 8)); pIn_buf_cur += 2; num_bits += 16; \
    } \
  } \
  if ((temp = (pHuff)->m_look_up[bit_buf & (sed_tinfl_FAST_LOOKUP_SIZE - 1)]) >= 0) \
    code_len = temp >> 9, temp &= 511; \
  else { \
    code_len = sed_tinfl_FAST_LOOKUP_BITS; do { temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; } while (temp < 0); \
  } sym = temp; bit_buf >>= code_len; num_bits -= code_len; } sed_mz_MACRO_END

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4334)
#endif

sed_tinfl_status sed_tinfl_decompress(sed_tinfl_decompressor *r, const sed_mz_uint8 *pIn_buf_next, size_t *pIn_buf_size, sed_mz_uint8 *pOut_buf_start, sed_mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, const sed_mz_uint32 decomp_flags)
{
  static const int s_length_base[31] = { 3,4,5,6,7,8,9,10,11,13, 15,17,19,23,27,31,35,43,51,59, 67,83,99,115,131,163,195,227,258,0,0 };
  static const int s_length_extra[31]= { 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 };
  static const int s_dist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, 257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0};
  static const int s_dist_extra[32] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
  static const sed_mz_uint8 s_length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 };
  static const int s_min_table_sizes[3] = { 257, 1, 4 };

  sed_tinfl_status status = sed_tinfl_STATUS_FAILED; sed_mz_uint32 num_bits, dist, counter, num_extra; sed_tinfl_bit_buf_t bit_buf;
  const sed_mz_uint8 *pIn_buf_cur = pIn_buf_next, *const pIn_buf_end = pIn_buf_next + *pIn_buf_size;
  sed_mz_uint8 *pOut_buf_cur = pOut_buf_next, *const pOut_buf_end = pOut_buf_next + *pOut_buf_size;
  size_t out_buf_size_mask = (decomp_flags & sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF) ? (size_t)-1 : ((pOut_buf_next - pOut_buf_start) + *pOut_buf_size) - 1, dist_from_out_buf_start;

  // Ensure the output buffer's size is a power of 2, unless the output buffer is large enough to hold the entire output file (in which case it doesn't matter).
  if (((out_buf_size_mask + 1) & out_buf_size_mask) || (pOut_buf_next < pOut_buf_start)) { *pIn_buf_size = *pOut_buf_size = 0; return sed_tinfl_STATUS_BAD_PARAM; }

  num_bits = r->m_num_bits; bit_buf = r->m_bit_buf; dist = r->m_dist; counter = r->m_counter; num_extra = r->m_num_extra; dist_from_out_buf_start = r->m_dist_from_out_buf_start;
  sed_tinfl_CR_BEGIN

  bit_buf = num_bits = dist = counter = num_extra = r->m_zhdr0 = r->m_zhdr1 = 0; r->m_z_adler32 = r->m_check_adler32 = 1;
  if (decomp_flags & sed_tinfl_FLAG_PARSE_ZLIB_HEADER)
  {
    sed_tinfl_GET_BYTE(1, r->m_zhdr0); sed_tinfl_GET_BYTE(2, r->m_zhdr1);
    counter = (((r->m_zhdr0 * 256 + r->m_zhdr1) % 31 != 0) || (r->m_zhdr1 & 32) || ((r->m_zhdr0 & 15) != 8));
    if (!(decomp_flags & sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)) counter |= (((1U << (8U + (r->m_zhdr0 >> 4))) > 32768U) || ((out_buf_size_mask + 1) < (size_t)(1U << (8U + (r->m_zhdr0 >> 4)))));
    if (counter) { sed_tinfl_CR_RETURN_FOREVER(36, sed_tinfl_STATUS_FAILED); }
  }

  do
  {
    sed_tinfl_GET_BITS(3, r->m_final, 3); r->m_type = r->m_final >> 1;
    if (r->m_type == 0)
    {
      sed_tinfl_SKIP_BITS(5, num_bits & 7);
      for (counter = 0; counter < 4; ++counter) { if (num_bits) sed_tinfl_GET_BITS(6, r->m_raw_header[counter], 8); else sed_tinfl_GET_BYTE(7, r->m_raw_header[counter]); }
      if ((counter = (r->m_raw_header[0] | (r->m_raw_header[1] << 8))) != (sed_mz_uint)(0xFFFF ^ (r->m_raw_header[2] | (r->m_raw_header[3] << 8)))) { sed_tinfl_CR_RETURN_FOREVER(39, sed_tinfl_STATUS_FAILED); }
      while ((counter) && (num_bits))
      {
        sed_tinfl_GET_BITS(51, dist, 8);
        while (pOut_buf_cur >= pOut_buf_end) { sed_tinfl_CR_RETURN(52, sed_tinfl_STATUS_HAS_MORE_OUTPUT); }
        *pOut_buf_cur++ = (sed_mz_uint8)dist;
        counter--;
      }
      while (counter)
      {
        size_t n; while (pOut_buf_cur >= pOut_buf_end) { sed_tinfl_CR_RETURN(9, sed_tinfl_STATUS_HAS_MORE_OUTPUT); }
        while (pIn_buf_cur >= pIn_buf_end)
        {
          if (decomp_flags & sed_tinfl_FLAG_HAS_MORE_INPUT)
          {
            sed_tinfl_CR_RETURN(38, sed_tinfl_STATUS_NEEDS_MORE_INPUT);
          }
          else
          {
            sed_tinfl_CR_RETURN_FOREVER(40, sed_tinfl_STATUS_FAILED);
          }
        }
        n = sed_mz_MIN(sed_mz_MIN((size_t)(pOut_buf_end - pOut_buf_cur), (size_t)(pIn_buf_end - pIn_buf_cur)), counter);
        sed_tinfl_MEMCPY(pOut_buf_cur, pIn_buf_cur, n); pIn_buf_cur += n; pOut_buf_cur += n; counter -= (sed_mz_uint)n;
      }
    }
    else if (r->m_type == 3)
    {
      sed_tinfl_CR_RETURN_FOREVER(10, sed_tinfl_STATUS_FAILED);
    }
    else
    {
      if (r->m_type == 1)
      {
        sed_mz_uint8 *p = r->m_tables[0].m_code_size; sed_mz_uint i;
        r->m_table_sizes[0] = 288; r->m_table_sizes[1] = 32; sed_tinfl_MEMSET(r->m_tables[1].m_code_size, 5, 32);
        for ( i = 0; i <= 143; ++i) *p++ = 8; for ( ; i <= 255; ++i) *p++ = 9; for ( ; i <= 279; ++i) *p++ = 7; for ( ; i <= 287; ++i) *p++ = 8;
      }
      else
      {
        for (counter = 0; counter < 3; counter++) { sed_tinfl_GET_BITS(11, r->m_table_sizes[counter], "\05\05\04"[counter]); r->m_table_sizes[counter] += s_min_table_sizes[counter]; }
        sed_mz_CLEAR_OBJ(r->m_tables[2].m_code_size); for (counter = 0; counter < r->m_table_sizes[2]; counter++) { sed_mz_uint s; sed_tinfl_GET_BITS(14, s, 3); r->m_tables[2].m_code_size[s_length_dezigzag[counter]] = (sed_mz_uint8)s; }
        r->m_table_sizes[2] = 19;
      }
      for ( ; (int)r->m_type >= 0; r->m_type--)
      {
        int tree_next, tree_cur; sed_tinfl_huff_table *pTable;
        sed_mz_uint i, j, used_syms, total, sym_index, next_code[17], total_syms[16]; pTable = &r->m_tables[r->m_type]; sed_mz_CLEAR_OBJ(total_syms); sed_mz_CLEAR_OBJ(pTable->m_look_up); sed_mz_CLEAR_OBJ(pTable->m_tree);
        for (i = 0; i < r->m_table_sizes[r->m_type]; ++i) total_syms[pTable->m_code_size[i]]++;
        used_syms = 0, total = 0; next_code[0] = next_code[1] = 0;
        for (i = 1; i <= 15; ++i) { used_syms += total_syms[i]; next_code[i + 1] = (total = ((total + total_syms[i]) << 1)); }
        if ((65536 != total) && (used_syms > 1))
        {
          sed_tinfl_CR_RETURN_FOREVER(35, sed_tinfl_STATUS_FAILED);
        }
        for (tree_next = -1, sym_index = 0; sym_index < r->m_table_sizes[r->m_type]; ++sym_index)
        {
          sed_mz_uint rev_code = 0, l, cur_code, code_size = pTable->m_code_size[sym_index]; if (!code_size) continue;
          cur_code = next_code[code_size]++; for (l = code_size; l > 0; l--, cur_code >>= 1) rev_code = (rev_code << 1) | (cur_code & 1);
          if (code_size <= sed_tinfl_FAST_LOOKUP_BITS) { sed_mz_int16 k = (sed_mz_int16)((code_size << 9) | sym_index); while (rev_code < sed_tinfl_FAST_LOOKUP_SIZE) { pTable->m_look_up[rev_code] = k; rev_code += (1 << code_size); } continue; }
          if (0 == (tree_cur = pTable->m_look_up[rev_code & (sed_tinfl_FAST_LOOKUP_SIZE - 1)])) { pTable->m_look_up[rev_code & (sed_tinfl_FAST_LOOKUP_SIZE - 1)] = (sed_mz_int16)tree_next; tree_cur = tree_next; tree_next -= 2; }
          rev_code >>= (sed_tinfl_FAST_LOOKUP_BITS - 1);
          for (j = code_size; j > (sed_tinfl_FAST_LOOKUP_BITS + 1); j--)
          {
            tree_cur -= ((rev_code >>= 1) & 1);
            if (!pTable->m_tree[-tree_cur - 1]) { pTable->m_tree[-tree_cur - 1] = (sed_mz_int16)tree_next; tree_cur = tree_next; tree_next -= 2; } else tree_cur = pTable->m_tree[-tree_cur - 1];
          }
          tree_cur -= ((rev_code >>= 1) & 1); pTable->m_tree[-tree_cur - 1] = (sed_mz_int16)sym_index;
        }
        if (r->m_type == 2)
        {
          for (counter = 0; counter < (r->m_table_sizes[0] + r->m_table_sizes[1]); )
          {
            sed_mz_uint s; sed_tinfl_HUFF_DECODE(16, dist, &r->m_tables[2]); if (dist < 16) { r->m_len_codes[counter++] = (sed_mz_uint8)dist; continue; }
            if ((dist == 16) && (!counter))
            {
              sed_tinfl_CR_RETURN_FOREVER(17, sed_tinfl_STATUS_FAILED);
            }
            num_extra = "\02\03\07"[dist - 16]; sed_tinfl_GET_BITS(18, s, num_extra); s += "\03\03\013"[dist - 16];
            sed_tinfl_MEMSET(r->m_len_codes + counter, (dist == 16) ? r->m_len_codes[counter - 1] : 0, s); counter += s;
          }
          if ((r->m_table_sizes[0] + r->m_table_sizes[1]) != counter)
          {
            sed_tinfl_CR_RETURN_FOREVER(21, sed_tinfl_STATUS_FAILED);
          }
          sed_tinfl_MEMCPY(r->m_tables[0].m_code_size, r->m_len_codes, r->m_table_sizes[0]); sed_tinfl_MEMCPY(r->m_tables[1].m_code_size, r->m_len_codes + r->m_table_sizes[0], r->m_table_sizes[1]);
        }
      }
      for ( ; ; )
      {
        sed_mz_uint8 *pSrc;
        for ( ; ; )
        {
          if (((pIn_buf_end - pIn_buf_cur) < 4) || ((pOut_buf_end - pOut_buf_cur) < 2))
          {
            sed_tinfl_HUFF_DECODE(23, counter, &r->m_tables[0]);
            if (counter >= 256)
              break;
            while (pOut_buf_cur >= pOut_buf_end) { sed_tinfl_CR_RETURN(24, sed_tinfl_STATUS_HAS_MORE_OUTPUT); }
            *pOut_buf_cur++ = (sed_mz_uint8)counter;
          }
          else
          {
            int sym2; sed_mz_uint code_len;
#if sed_tinfl_USE_64BIT_BITBUF
            if (num_bits < 30) { bit_buf |= (((sed_tinfl_bit_buf_t)sed_mz_READ_LE32(pIn_buf_cur)) << num_bits); pIn_buf_cur += 4; num_bits += 32; }
#else
            if (num_bits < 15) { bit_buf |= (((sed_tinfl_bit_buf_t)sed_mz_READ_LE16(pIn_buf_cur)) << num_bits); pIn_buf_cur += 2; num_bits += 16; }
#endif
            if ((sym2 = r->m_tables[0].m_look_up[bit_buf & (sed_tinfl_FAST_LOOKUP_SIZE - 1)]) >= 0)
              code_len = sym2 >> 9;
            else
            {
              code_len = sed_tinfl_FAST_LOOKUP_BITS; do { sym2 = r->m_tables[0].m_tree[~sym2 + ((bit_buf >> code_len++) & 1)]; } while (sym2 < 0);
            }
            counter = sym2; bit_buf >>= code_len; num_bits -= code_len;
            if (counter & 256)
              break;

#if !sed_tinfl_USE_64BIT_BITBUF
            if (num_bits < 15) { bit_buf |= (((sed_tinfl_bit_buf_t)sed_mz_READ_LE16(pIn_buf_cur)) << num_bits); pIn_buf_cur += 2; num_bits += 16; }
#endif
            if ((sym2 = r->m_tables[0].m_look_up[bit_buf & (sed_tinfl_FAST_LOOKUP_SIZE - 1)]) >= 0)
              code_len = sym2 >> 9;
            else
            {
              code_len = sed_tinfl_FAST_LOOKUP_BITS; do { sym2 = r->m_tables[0].m_tree[~sym2 + ((bit_buf >> code_len++) & 1)]; } while (sym2 < 0);
            }
            bit_buf >>= code_len; num_bits -= code_len;

            pOut_buf_cur[0] = (sed_mz_uint8)counter;
            if (sym2 & 256)
            {
              pOut_buf_cur++;
              counter = sym2;
              break;
            }
            pOut_buf_cur[1] = (sed_mz_uint8)sym2;
            pOut_buf_cur += 2;
          }
        }
        if ((counter &= 511) == 256) break;

        num_extra = s_length_extra[counter - 257]; counter = s_length_base[counter - 257];
        if (num_extra) { sed_mz_uint extra_bits; sed_tinfl_GET_BITS(25, extra_bits, num_extra); counter += extra_bits; }

        sed_tinfl_HUFF_DECODE(26, dist, &r->m_tables[1]);
        num_extra = s_dist_extra[dist]; dist = s_dist_base[dist];
        if (num_extra) { sed_mz_uint extra_bits; sed_tinfl_GET_BITS(27, extra_bits, num_extra); dist += extra_bits; }

        dist_from_out_buf_start = pOut_buf_cur - pOut_buf_start;
        if ((dist > dist_from_out_buf_start) && (decomp_flags & sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))
        {
          sed_tinfl_CR_RETURN_FOREVER(37, sed_tinfl_STATUS_FAILED);
        }

        pSrc = pOut_buf_start + ((dist_from_out_buf_start - dist) & out_buf_size_mask);

        if ((sed_mz_MAX(pOut_buf_cur, pSrc) + counter) > pOut_buf_end)
        {
          while (counter--)
          {
            while (pOut_buf_cur >= pOut_buf_end) { sed_tinfl_CR_RETURN(53, sed_tinfl_STATUS_HAS_MORE_OUTPUT); }
            *pOut_buf_cur++ = pOut_buf_start[(dist_from_out_buf_start++ - dist) & out_buf_size_mask];
          }
          continue;
        }
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
        else if ((counter >= 9) && (counter <= dist))
        {
          const sed_mz_uint8 *pSrc_end = pSrc + (counter & ~7);
          do
          {
            ((sed_mz_uint32 *)pOut_buf_cur)[0] = ((const sed_mz_uint32 *)pSrc)[0];
            ((sed_mz_uint32 *)pOut_buf_cur)[1] = ((const sed_mz_uint32 *)pSrc)[1];
            pOut_buf_cur += 8;
          } while ((pSrc += 8) < pSrc_end);
          if ((counter &= 7) < 3)
          {
            if (counter)
            {
              pOut_buf_cur[0] = pSrc[0];
              if (counter > 1)
                pOut_buf_cur[1] = pSrc[1];
              pOut_buf_cur += counter;
            }
            continue;
          }
        }
#endif
        do
        {
          pOut_buf_cur[0] = pSrc[0];
          pOut_buf_cur[1] = pSrc[1];
          pOut_buf_cur[2] = pSrc[2];
          pOut_buf_cur += 3; pSrc += 3;
        } while ((int)(counter -= 3) > 2);
        if ((int)counter > 0)
        {
          pOut_buf_cur[0] = pSrc[0];
          if ((int)counter > 1)
            pOut_buf_cur[1] = pSrc[1];
          pOut_buf_cur += counter;
        }
      }
    }
  } while (!(r->m_final & 1));
  if (decomp_flags & sed_tinfl_FLAG_PARSE_ZLIB_HEADER)
  {
    sed_tinfl_SKIP_BITS(32, num_bits & 7); for (counter = 0; counter < 4; ++counter) { sed_mz_uint s; if (num_bits) sed_tinfl_GET_BITS(41, s, 8); else sed_tinfl_GET_BYTE(42, s); r->m_z_adler32 = (r->m_z_adler32 << 8) | s; }
  }
  sed_tinfl_CR_RETURN_FOREVER(34, sed_tinfl_STATUS_DONE);
  sed_tinfl_CR_FINISH

common_exit:
  r->m_num_bits = num_bits; r->m_bit_buf = bit_buf; r->m_dist = dist; r->m_counter = counter; r->m_num_extra = num_extra; r->m_dist_from_out_buf_start = dist_from_out_buf_start;
  *pIn_buf_size = pIn_buf_cur - pIn_buf_next; *pOut_buf_size = pOut_buf_cur - pOut_buf_next;
  if ((decomp_flags & (sed_tinfl_FLAG_PARSE_ZLIB_HEADER | sed_tinfl_FLAG_COMPUTE_ADLER32)) && (status >= 0))
  {
    const sed_mz_uint8 *ptr = pOut_buf_next; size_t buf_len = *pOut_buf_size;
    sed_mz_uint32 i, s1 = r->m_check_adler32 & 0xffff, s2 = r->m_check_adler32 >> 16; size_t block_len = buf_len % 5552;
    while (buf_len)
    {
      for (i = 0; i + 7 < block_len; i += 8, ptr += 8)
      {
        s1 += ptr[0], s2 += s1; s1 += ptr[1], s2 += s1; s1 += ptr[2], s2 += s1; s1 += ptr[3], s2 += s1;
        s1 += ptr[4], s2 += s1; s1 += ptr[5], s2 += s1; s1 += ptr[6], s2 += s1; s1 += ptr[7], s2 += s1;
      }
      for ( ; i < block_len; ++i) s1 += *ptr++, s2 += s1;
      s1 %= 65521U, s2 %= 65521U; buf_len -= block_len; block_len = 5552;
    }
    r->m_check_adler32 = (s2 << 16) + s1; if ((status == sed_tinfl_STATUS_DONE) && (decomp_flags & sed_tinfl_FLAG_PARSE_ZLIB_HEADER) && (r->m_check_adler32 != r->m_z_adler32)) status = sed_tinfl_STATUS_ADLER32_MISMATCH;
  }
  return status;
}

#ifdef _MSC_VER
#pragma warning(pop)
#endif

// Higher level helper functions.
void *sed_tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags)
{
  sed_tinfl_decompressor decomp; void *pBuf = NULL, *pNew_buf; size_t src_buf_ofs = 0, out_buf_capacity = 0;
  *pOut_len = 0;
  sed_tinfl_init(&decomp);
  for ( ; ; )
  {
    size_t src_buf_size = src_buf_len - src_buf_ofs, dst_buf_size = out_buf_capacity - *pOut_len, new_out_buf_capacity;
    sed_tinfl_status status = sed_tinfl_decompress(&decomp, (const sed_mz_uint8*)pSrc_buf + src_buf_ofs, &src_buf_size, (sed_mz_uint8*)pBuf, pBuf ? (sed_mz_uint8*)pBuf + *pOut_len : NULL, &dst_buf_size,
      (flags & ~sed_tinfl_FLAG_HAS_MORE_INPUT) | sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
    if ((status < 0) || (status == sed_tinfl_STATUS_NEEDS_MORE_INPUT))
    {
      sed_mz_FREE(pBuf); *pOut_len = 0; return NULL;
    }
    src_buf_ofs += src_buf_size;
    *pOut_len += dst_buf_size;
    if (status == sed_tinfl_STATUS_DONE) break;
    new_out_buf_capacity = out_buf_capacity * 2; if (new_out_buf_capacity < 128) new_out_buf_capacity = 128;
    pNew_buf = sed_mz_REALLOC(pBuf, new_out_buf_capacity);
    if (!pNew_buf)
    {
      sed_mz_FREE(pBuf); *pOut_len = 0; return NULL;
    }
    pBuf = pNew_buf; out_buf_capacity = new_out_buf_capacity;
  }
  return pBuf;
}

size_t sed_tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags)
{
  sed_tinfl_decompressor decomp; sed_tinfl_status status; sed_tinfl_init(&decomp);
  status = sed_tinfl_decompress(&decomp, (const sed_mz_uint8*)pSrc_buf, &src_buf_len, (sed_mz_uint8*)pOut_buf, (sed_mz_uint8*)pOut_buf, &out_buf_len, (flags & ~sed_tinfl_FLAG_HAS_MORE_INPUT) | sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
  return (status != sed_tinfl_STATUS_DONE) ? sed_tinfl_DECOMPRESS_MEM_TO_MEM_FAILED : out_buf_len;
}

int sed_tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, sed_tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
{
  int result = 0;
  sed_tinfl_decompressor decomp;
  sed_mz_uint8 *pDict = (sed_mz_uint8*)sed_mz_MALLOC(sed_tinfl_LZ_DICT_SIZE); size_t in_buf_ofs = 0, dict_ofs = 0;
  if (!pDict)
    return sed_tinfl_STATUS_FAILED;
  sed_tinfl_init(&decomp);
  for ( ; ; )
  {
    size_t in_buf_size = *pIn_buf_size - in_buf_ofs, dst_buf_size = sed_tinfl_LZ_DICT_SIZE - dict_ofs;
    sed_tinfl_status status = sed_tinfl_decompress(&decomp, (const sed_mz_uint8*)pIn_buf + in_buf_ofs, &in_buf_size, pDict, pDict + dict_ofs, &dst_buf_size,
      (flags & ~(sed_tinfl_FLAG_HAS_MORE_INPUT | sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)));
    in_buf_ofs += in_buf_size;
    if ((dst_buf_size) && (!(*pPut_buf_func)(pDict + dict_ofs, (int)dst_buf_size, pPut_buf_user)))
      break;
    if (status != sed_tinfl_STATUS_HAS_MORE_OUTPUT)
    {
      result = (status == sed_tinfl_STATUS_DONE);
      break;
    }
    dict_ofs = (dict_ofs + dst_buf_size) & (sed_tinfl_LZ_DICT_SIZE - 1);
  }
  sed_mz_FREE(pDict);
  *pIn_buf_size = in_buf_ofs;
  return result;
}

// ------------------- Low-level Compression (independent from all decompression API's)

// Purposely making these tables static for faster init and thread safety.
static const sed_mz_uint16 s_sed_tdefl_len_sym[256] = {
  257,258,259,260,261,262,263,264,265,265,266,266,267,267,268,268,269,269,269,269,270,270,270,270,271,271,271,271,272,272,272,272,
  273,273,273,273,273,273,273,273,274,274,274,274,274,274,274,274,275,275,275,275,275,275,275,275,276,276,276,276,276,276,276,276,
  277,277,277,277,277,277,277,277,277,277,277,277,277,277,277,277,278,278,278,278,278,278,278,278,278,278,278,278,278,278,278,278,
  279,279,279,279,279,279,279,279,279,279,279,279,279,279,279,279,280,280,280,280,280,280,280,280,280,280,280,280,280,280,280,280,
  281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,
  282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,
  283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,
  284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,285 };

static const sed_mz_uint8 s_sed_tdefl_len_extra[256] = {
  0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
  4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
  5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
  5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,0 };

static const sed_mz_uint8 s_sed_tdefl_small_dist_sym[512] = {
  0,1,2,3,4,4,5,5,6,6,6,6,7,7,7,7,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,
  11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,13,
  13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14,14,14,
  14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
  14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
  15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,16,16,16,
  16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
  16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
  16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
  17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
  17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
  17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17 };

static const sed_mz_uint8 s_sed_tdefl_small_dist_extra[512] = {
  0,0,0,0,1,1,1,1,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,
  5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
  6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
  6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7 };

static const sed_mz_uint8 s_sed_tdefl_large_dist_sym[128] = {
  0,0,18,19,20,20,21,21,22,22,22,22,23,23,23,23,24,24,24,24,24,24,24,24,25,25,25,25,25,25,25,25,26,26,26,26,26,26,26,26,26,26,26,26,
  26,26,26,26,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,
  28,28,28,28,28,28,28,28,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29 };

static const sed_mz_uint8 s_sed_tdefl_large_dist_extra[128] = {
  0,0,8,8,9,9,9,9,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,
  12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,
  13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13 };

// Radix sorts sed_tdefl_sym_freq[] array by 16-bit key m_key. Returns ptr to sorted values.
typedef struct { sed_mz_uint16 m_key, m_sym_index; } sed_tdefl_sym_freq;
static sed_tdefl_sym_freq* sed_tdefl_radix_sort_syms(sed_mz_uint num_syms, sed_tdefl_sym_freq* pSyms0, sed_tdefl_sym_freq* pSyms1)
{
  sed_mz_uint32 total_passes = 2, pass_shift, pass, i, hist[256 * 2]; sed_tdefl_sym_freq* pCur_syms = pSyms0, *pNew_syms = pSyms1; sed_mz_CLEAR_OBJ(hist);
  for (i = 0; i < num_syms; i++) { sed_mz_uint freq = pSyms0[i].m_key; hist[freq & 0xFF]++; hist[256 + ((freq >> 8) & 0xFF)]++; }
  while ((total_passes > 1) && (num_syms == hist[(total_passes - 1) * 256])) total_passes--;
  for (pass_shift = 0, pass = 0; pass < total_passes; pass++, pass_shift += 8)
  {
    const sed_mz_uint32* pHist = &hist[pass << 8];
    sed_mz_uint offsets[256], cur_ofs = 0;
    for (i = 0; i < 256; i++) { offsets[i] = cur_ofs; cur_ofs += pHist[i]; }
    for (i = 0; i < num_syms; i++) pNew_syms[offsets[(pCur_syms[i].m_key >> pass_shift) & 0xFF]++] = pCur_syms[i];
    { sed_tdefl_sym_freq* t = pCur_syms; pCur_syms = pNew_syms; pNew_syms = t; }
  }
  return pCur_syms;
}

// sed_tdefl_calculate_minimum_redundancy() originally written by: Alistair Moffat, alistair@cs.mu.oz.au, Jyrki Katajainen, jyrki@diku.dk, November 1996.
static void sed_tdefl_calculate_minimum_redundancy(sed_tdefl_sym_freq *A, int n)
{
  int root, leaf, next, avbl, used, dpth;
  if (n==0) return; else if (n==1) { A[0].m_key = 1; return; }
  A[0].m_key += A[1].m_key; root = 0; leaf = 2;
  for (next=1; next < n-1; next++)
  {
    if (leaf>=n || A[root].m_key<A[leaf].m_key) { A[next].m_key = A[root].m_key; A[root++].m_key = (sed_mz_uint16)next; } else A[next].m_key = A[leaf++].m_key;
    if (leaf>=n || (root<next && A[root].m_key<A[leaf].m_key)) { A[next].m_key = (sed_mz_uint16)(A[next].m_key + A[root].m_key); A[root++].m_key = (sed_mz_uint16)next; } else A[next].m_key = (sed_mz_uint16)(A[next].m_key + A[leaf++].m_key);
  }
  A[n-2].m_key = 0; for (next=n-3; next>=0; next--) A[next].m_key = A[A[next].m_key].m_key+1;
  avbl = 1; used = dpth = 0; root = n-2; next = n-1;
  while (avbl>0)
  {
    while (root>=0 && (int)A[root].m_key==dpth) { used++; root--; }
    while (avbl>used) { A[next--].m_key = (sed_mz_uint16)(dpth); avbl--; }
    avbl = 2*used; dpth++; used = 0;
  }
}

// Limits canonical Huffman code table's max code size.
enum { sed_tdefl_MAX_SUPPORTED_HUFF_CODESIZE = 32 };
static void sed_tdefl_huffman_enforce_max_code_size(int *pNum_codes, int code_list_len, int max_code_size)
{
  int i; sed_mz_uint32 total = 0; if (code_list_len <= 1) return;
  for (i = max_code_size + 1; i <= sed_tdefl_MAX_SUPPORTED_HUFF_CODESIZE; i++) pNum_codes[max_code_size] += pNum_codes[i];
  for (i = max_code_size; i > 0; i--) total += (((sed_mz_uint32)pNum_codes[i]) << (max_code_size - i));
  while (total != (1UL << max_code_size))
  {
    pNum_codes[max_code_size]--;
    for (i = max_code_size - 1; i > 0; i--) if (pNum_codes[i]) { pNum_codes[i]--; pNum_codes[i + 1] += 2; break; }
    total--;
  }
}

static void sed_tdefl_optimize_huffman_table(sed_tdefl_compressor *d, int table_num, int table_len, int code_size_limit, int static_table)
{
  int i, j, l, num_codes[1 + sed_tdefl_MAX_SUPPORTED_HUFF_CODESIZE]; sed_mz_uint next_code[sed_tdefl_MAX_SUPPORTED_HUFF_CODESIZE + 1]; sed_mz_CLEAR_OBJ(num_codes);
  if (static_table)
  {
    for (i = 0; i < table_len; i++) num_codes[d->m_huff_code_sizes[table_num][i]]++;
  }
  else
  {
    sed_tdefl_sym_freq syms0[sed_tdefl_MAX_HUFF_SYMBOLS], syms1[sed_tdefl_MAX_HUFF_SYMBOLS], *pSyms;
    int num_used_syms = 0;
    const sed_mz_uint16 *pSym_count = &d->m_huff_count[table_num][0];
    for (i = 0; i < table_len; i++) if (pSym_count[i]) { syms0[num_used_syms].m_key = (sed_mz_uint16)pSym_count[i]; syms0[num_used_syms++].m_sym_index = (sed_mz_uint16)i; }

    pSyms = sed_tdefl_radix_sort_syms(num_used_syms, syms0, syms1); sed_tdefl_calculate_minimum_redundancy(pSyms, num_used_syms);

    for (i = 0; i < num_used_syms; i++) num_codes[pSyms[i].m_key]++;

    sed_tdefl_huffman_enforce_max_code_size(num_codes, num_used_syms, code_size_limit);

    sed_mz_CLEAR_OBJ(d->m_huff_code_sizes[table_num]); sed_mz_CLEAR_OBJ(d->m_huff_codes[table_num]);
    for (i = 1, j = num_used_syms; i <= code_size_limit; i++)
      for (l = num_codes[i]; l > 0; l--) d->m_huff_code_sizes[table_num][pSyms[--j].m_sym_index] = (sed_mz_uint8)(i);
  }

  next_code[1] = 0; for (j = 0, i = 2; i <= code_size_limit; i++) next_code[i] = j = ((j + num_codes[i - 1]) << 1);

  for (i = 0; i < table_len; i++)
  {
    sed_mz_uint rev_code = 0, code, code_size; if ((code_size = d->m_huff_code_sizes[table_num][i]) == 0) continue;
    code = next_code[code_size]++; for (l = code_size; l > 0; l--, code >>= 1) rev_code = (rev_code << 1) | (code & 1);
    d->m_huff_codes[table_num][i] = (sed_mz_uint16)rev_code;
  }
}

#define sed_tdefl_PUT_BITS(b, l) do { \
  sed_mz_uint bits = b; sed_mz_uint len = l; sed_mz_ASSERT(bits <= ((1U << len) - 1U)); \
  d->m_bit_buffer |= (bits << d->m_bits_in); d->m_bits_in += len; \
  while (d->m_bits_in >= 8) { \
    if (d->m_pOutput_buf < d->m_pOutput_buf_end) \
      *d->m_pOutput_buf++ = (sed_mz_uint8)(d->m_bit_buffer); \
      d->m_bit_buffer >>= 8; \
      d->m_bits_in -= 8; \
  } \
} sed_mz_MACRO_END

#define sed_tdefl_RLE_PREV_CODE_SIZE() { if (rle_repeat_count) { \
  if (rle_repeat_count < 3) { \
    d->m_huff_count[2][prev_code_size] = (sed_mz_uint16)(d->m_huff_count[2][prev_code_size] + rle_repeat_count); \
    while (rle_repeat_count--) packed_code_sizes[num_packed_code_sizes++] = prev_code_size; \
  } else { \
    d->m_huff_count[2][16] = (sed_mz_uint16)(d->m_huff_count[2][16] + 1); packed_code_sizes[num_packed_code_sizes++] = 16; packed_code_sizes[num_packed_code_sizes++] = (sed_mz_uint8)(rle_repeat_count - 3); \
} rle_repeat_count = 0; } }

#define sed_tdefl_RLE_ZERO_CODE_SIZE() { if (rle_z_count) { \
  if (rle_z_count < 3) { \
    d->m_huff_count[2][0] = (sed_mz_uint16)(d->m_huff_count[2][0] + rle_z_count); while (rle_z_count--) packed_code_sizes[num_packed_code_sizes++] = 0; \
  } else if (rle_z_count <= 10) { \
    d->m_huff_count[2][17] = (sed_mz_uint16)(d->m_huff_count[2][17] + 1); packed_code_sizes[num_packed_code_sizes++] = 17; packed_code_sizes[num_packed_code_sizes++] = (sed_mz_uint8)(rle_z_count - 3); \
  } else { \
    d->m_huff_count[2][18] = (sed_mz_uint16)(d->m_huff_count[2][18] + 1); packed_code_sizes[num_packed_code_sizes++] = 18; packed_code_sizes[num_packed_code_sizes++] = (sed_mz_uint8)(rle_z_count - 11); \
} rle_z_count = 0; } }

static sed_mz_uint8 s_sed_tdefl_packed_code_size_syms_swizzle[] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 };

static void sed_tdefl_start_dynamic_block(sed_tdefl_compressor *d)
{
  int num_lit_codes, num_dist_codes, num_bit_lengths; sed_mz_uint i, total_code_sizes_to_pack, num_packed_code_sizes, rle_z_count, rle_repeat_count, packed_code_sizes_index;
  sed_mz_uint8 code_sizes_to_pack[sed_tdefl_MAX_HUFF_SYMBOLS_0 + sed_tdefl_MAX_HUFF_SYMBOLS_1], packed_code_sizes[sed_tdefl_MAX_HUFF_SYMBOLS_0 + sed_tdefl_MAX_HUFF_SYMBOLS_1], prev_code_size = 0xFF;

  d->m_huff_count[0][256] = 1;

  sed_tdefl_optimize_huffman_table(d, 0, sed_tdefl_MAX_HUFF_SYMBOLS_0, 15, sed_mz_FALSE);
  sed_tdefl_optimize_huffman_table(d, 1, sed_tdefl_MAX_HUFF_SYMBOLS_1, 15, sed_mz_FALSE);

  for (num_lit_codes = 286; num_lit_codes > 257; num_lit_codes--) if (d->m_huff_code_sizes[0][num_lit_codes - 1]) break;
  for (num_dist_codes = 30; num_dist_codes > 1; num_dist_codes--) if (d->m_huff_code_sizes[1][num_dist_codes - 1]) break;

  memcpy(code_sizes_to_pack, &d->m_huff_code_sizes[0][0], num_lit_codes);
  memcpy(code_sizes_to_pack + num_lit_codes, &d->m_huff_code_sizes[1][0], num_dist_codes);
  total_code_sizes_to_pack = num_lit_codes + num_dist_codes; num_packed_code_sizes = 0; rle_z_count = 0; rle_repeat_count = 0;

  memset(&d->m_huff_count[2][0], 0, sizeof(d->m_huff_count[2][0]) * sed_tdefl_MAX_HUFF_SYMBOLS_2);
  for (i = 0; i < total_code_sizes_to_pack; i++)
  {
    sed_mz_uint8 code_size = code_sizes_to_pack[i];
    if (!code_size)
    {
      sed_tdefl_RLE_PREV_CODE_SIZE();
      if (++rle_z_count == 138) { sed_tdefl_RLE_ZERO_CODE_SIZE(); }
    }
    else
    {
      sed_tdefl_RLE_ZERO_CODE_SIZE();
      if (code_size != prev_code_size)
      {
        sed_tdefl_RLE_PREV_CODE_SIZE();
        d->m_huff_count[2][code_size] = (sed_mz_uint16)(d->m_huff_count[2][code_size] + 1); packed_code_sizes[num_packed_code_sizes++] = code_size;
      }
      else if (++rle_repeat_count == 6)
      {
        sed_tdefl_RLE_PREV_CODE_SIZE();
      }
    }
    prev_code_size = code_size;
  }
  if (rle_repeat_count) { sed_tdefl_RLE_PREV_CODE_SIZE(); } else { sed_tdefl_RLE_ZERO_CODE_SIZE(); }

  sed_tdefl_optimize_huffman_table(d, 2, sed_tdefl_MAX_HUFF_SYMBOLS_2, 7, sed_mz_FALSE);

  sed_tdefl_PUT_BITS(2, 2);

  sed_tdefl_PUT_BITS(num_lit_codes - 257, 5);
  sed_tdefl_PUT_BITS(num_dist_codes - 1, 5);

  for (num_bit_lengths = 18; num_bit_lengths >= 0; num_bit_lengths--) if (d->m_huff_code_sizes[2][s_sed_tdefl_packed_code_size_syms_swizzle[num_bit_lengths]]) break;
  num_bit_lengths = sed_mz_MAX(4, (num_bit_lengths + 1)); sed_tdefl_PUT_BITS(num_bit_lengths - 4, 4);
  for (i = 0; (int)i < num_bit_lengths; i++) sed_tdefl_PUT_BITS(d->m_huff_code_sizes[2][s_sed_tdefl_packed_code_size_syms_swizzle[i]], 3);

  for (packed_code_sizes_index = 0; packed_code_sizes_index < num_packed_code_sizes; )
  {
    sed_mz_uint code = packed_code_sizes[packed_code_sizes_index++]; sed_mz_ASSERT(code < sed_tdefl_MAX_HUFF_SYMBOLS_2);
    sed_tdefl_PUT_BITS(d->m_huff_codes[2][code], d->m_huff_code_sizes[2][code]);
    if (code >= 16) sed_tdefl_PUT_BITS(packed_code_sizes[packed_code_sizes_index++], "\02\03\07"[code - 16]);
  }
}

static void sed_tdefl_start_static_block(sed_tdefl_compressor *d)
{
  sed_mz_uint i;
  sed_mz_uint8 *p = &d->m_huff_code_sizes[0][0];

  for (i = 0; i <= 143; ++i) *p++ = 8;
  for ( ; i <= 255; ++i) *p++ = 9;
  for ( ; i <= 279; ++i) *p++ = 7;
  for ( ; i <= 287; ++i) *p++ = 8;

  memset(d->m_huff_code_sizes[1], 5, 32);

  sed_tdefl_optimize_huffman_table(d, 0, 288, 15, sed_mz_TRUE);
  sed_tdefl_optimize_huffman_table(d, 1, 32, 15, sed_mz_TRUE);

  sed_tdefl_PUT_BITS(1, 2);
}

static const sed_mz_uint sed_mz_bitmasks[17] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF };

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS
static sed_mz_bool sed_tdefl_compress_lz_codes(sed_tdefl_compressor *d)
{
  sed_mz_uint flags;
  sed_mz_uint8 *pLZ_codes;
  sed_mz_uint8 *pOutput_buf = d->m_pOutput_buf;
  sed_mz_uint8 *pLZ_code_buf_end = d->m_pLZ_code_buf;
  sed_mz_uint64 bit_buffer = d->m_bit_buffer;
  sed_mz_uint bits_in = d->m_bits_in;

#define sed_tdefl_PUT_BITS_FAST(b, l) { bit_buffer |= (((sed_mz_uint64)(b)) << bits_in); bits_in += (l); }

  flags = 1;
  for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < pLZ_code_buf_end; flags >>= 1)
  {
    if (flags == 1)
      flags = *pLZ_codes++ | 0x100;

    if (flags & 1)
    {
      sed_mz_uint s0, s1, n0, n1, sym, num_extra_bits;
      sed_mz_uint match_len = pLZ_codes[0], match_dist = *(const sed_mz_uint16 *)(pLZ_codes + 1); pLZ_codes += 3;

      sed_mz_ASSERT(d->m_huff_code_sizes[0][s_sed_tdefl_len_sym[match_len]]);
      sed_tdefl_PUT_BITS_FAST(d->m_huff_codes[0][s_sed_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_sed_tdefl_len_sym[match_len]]);
      sed_tdefl_PUT_BITS_FAST(match_len & sed_mz_bitmasks[s_sed_tdefl_len_extra[match_len]], s_sed_tdefl_len_extra[match_len]);

      // This sequence coaxes MSVC into using cmov's vs. jmp's.
      s0 = s_sed_tdefl_small_dist_sym[match_dist & 511];
      n0 = s_sed_tdefl_small_dist_extra[match_dist & 511];
      s1 = s_sed_tdefl_large_dist_sym[match_dist >> 8];
      n1 = s_sed_tdefl_large_dist_extra[match_dist >> 8];
      sym = (match_dist < 512) ? s0 : s1;
      num_extra_bits = (match_dist < 512) ? n0 : n1;

      sed_mz_ASSERT(d->m_huff_code_sizes[1][sym]);
      sed_tdefl_PUT_BITS_FAST(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]);
      sed_tdefl_PUT_BITS_FAST(match_dist & sed_mz_bitmasks[num_extra_bits], num_extra_bits);
    }
    else
    {
      sed_mz_uint lit = *pLZ_codes++;
      sed_mz_ASSERT(d->m_huff_code_sizes[0][lit]);
      sed_tdefl_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);

      if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end))
      {
        flags >>= 1;
        lit = *pLZ_codes++;
        sed_mz_ASSERT(d->m_huff_code_sizes[0][lit]);
        sed_tdefl_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);

        if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end))
        {
          flags >>= 1;
          lit = *pLZ_codes++;
          sed_mz_ASSERT(d->m_huff_code_sizes[0][lit]);
          sed_tdefl_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
        }
      }
    }

    if (pOutput_buf >= d->m_pOutput_buf_end)
      return sed_mz_FALSE;

    *(sed_mz_uint64*)pOutput_buf = bit_buffer;
    pOutput_buf += (bits_in >> 3);
    bit_buffer >>= (bits_in & ~7);
    bits_in &= 7;
  }

#undef sed_tdefl_PUT_BITS_FAST

  d->m_pOutput_buf = pOutput_buf;
  d->m_bits_in = 0;
  d->m_bit_buffer = 0;

  while (bits_in)
  {
    sed_mz_uint32 n = sed_mz_MIN(bits_in, 16);
    sed_tdefl_PUT_BITS((sed_mz_uint)bit_buffer & sed_mz_bitmasks[n], n);
    bit_buffer >>= n;
    bits_in -= n;
  }

  sed_tdefl_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]);

  return (d->m_pOutput_buf < d->m_pOutput_buf_end);
}
#else
static sed_mz_bool sed_tdefl_compress_lz_codes(sed_tdefl_compressor *d)
{
  sed_mz_uint flags;
  sed_mz_uint8 *pLZ_codes;

  flags = 1;
  for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < d->m_pLZ_code_buf; flags >>= 1)
  {
    if (flags == 1)
      flags = *pLZ_codes++ | 0x100;
    if (flags & 1)
    {
      sed_mz_uint sym, num_extra_bits;
      sed_mz_uint match_len = pLZ_codes[0], match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8)); pLZ_codes += 3;

      sed_mz_ASSERT(d->m_huff_code_sizes[0][s_sed_tdefl_len_sym[match_len]]);
      sed_tdefl_PUT_BITS(d->m_huff_codes[0][s_sed_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_sed_tdefl_len_sym[match_len]]);
      sed_tdefl_PUT_BITS(match_len & sed_mz_bitmasks[s_sed_tdefl_len_extra[match_len]], s_sed_tdefl_len_extra[match_len]);

      if (match_dist < 512)
      {
        sym = s_sed_tdefl_small_dist_sym[match_dist]; num_extra_bits = s_sed_tdefl_small_dist_extra[match_dist];
      }
      else
      {
        sym = s_sed_tdefl_large_dist_sym[match_dist >> 8]; num_extra_bits = s_sed_tdefl_large_dist_extra[match_dist >> 8];
      }
      sed_mz_ASSERT(d->m_huff_code_sizes[1][sym]);
      sed_tdefl_PUT_BITS(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]);
      sed_tdefl_PUT_BITS(match_dist & sed_mz_bitmasks[num_extra_bits], num_extra_bits);
    }
    else
    {
      sed_mz_uint lit = *pLZ_codes++;
      sed_mz_ASSERT(d->m_huff_code_sizes[0][lit]);
      sed_tdefl_PUT_BITS(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
    }
  }

  sed_tdefl_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]);

  return (d->m_pOutput_buf < d->m_pOutput_buf_end);
}
#endif // MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS

static sed_mz_bool sed_tdefl_compress_block(sed_tdefl_compressor *d, sed_mz_bool static_block)
{
  if (static_block)
    sed_tdefl_start_static_block(d);
  else
    sed_tdefl_start_dynamic_block(d);
  return sed_tdefl_compress_lz_codes(d);
}

static int sed_tdefl_flush_block(sed_tdefl_compressor *d, int flush)
{
  sed_mz_uint saved_bit_buf, saved_bits_in;
  sed_mz_uint8 *pSaved_output_buf;
  sed_mz_bool comp_block_succeeded = sed_mz_FALSE;
  int n, use_raw_block = ((d->m_flags & sed_tdefl_FORCE_ALL_RAW_BLOCKS) != 0) && (d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size;
  sed_mz_uint8 *pOutput_buf_start = ((d->m_pPut_buf_func == NULL) && ((*d->m_pOut_buf_size - d->m_out_buf_ofs) >= sed_tdefl_OUT_BUF_SIZE)) ? ((sed_mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs) : d->m_output_buf;

  d->m_pOutput_buf = pOutput_buf_start;
  d->m_pOutput_buf_end = d->m_pOutput_buf + sed_tdefl_OUT_BUF_SIZE - 16;

  sed_mz_ASSERT(!d->m_output_flush_remaining);
  d->m_output_flush_ofs = 0;
  d->m_output_flush_remaining = 0;

  *d->m_pLZ_flags = (sed_mz_uint8)(*d->m_pLZ_flags >> d->m_num_flags_left);
  d->m_pLZ_code_buf -= (d->m_num_flags_left == 8);

  if ((d->m_flags & sed_tdefl_WRITE_ZLIB_HEADER) && (!d->m_block_index))
  {
    sed_tdefl_PUT_BITS(0x78, 8); sed_tdefl_PUT_BITS(0x01, 8);
  }

  sed_tdefl_PUT_BITS(flush == sed_tdefl_FINISH, 1);

  pSaved_output_buf = d->m_pOutput_buf; saved_bit_buf = d->m_bit_buffer; saved_bits_in = d->m_bits_in;

  if (!use_raw_block)
    comp_block_succeeded = sed_tdefl_compress_block(d, (d->m_flags & sed_tdefl_FORCE_ALL_STATIC_BLOCKS) || (d->m_total_lz_bytes < 48));

  // If the block gets expanded, forget the current contents of the output buffer and send a raw block instead.
  if ( ((use_raw_block) || ((d->m_total_lz_bytes) && ((d->m_pOutput_buf - pSaved_output_buf + 1U) >= d->m_total_lz_bytes))) &&
       ((d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size) )
  {
    sed_mz_uint i; d->m_pOutput_buf = pSaved_output_buf; d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
    sed_tdefl_PUT_BITS(0, 2);
    if (d->m_bits_in) { sed_tdefl_PUT_BITS(0, 8 - d->m_bits_in); }
    for (i = 2; i; --i, d->m_total_lz_bytes ^= 0xFFFF)
    {
      sed_tdefl_PUT_BITS(d->m_total_lz_bytes & 0xFFFF, 16);
    }
    for (i = 0; i < d->m_total_lz_bytes; ++i)
    {
      sed_tdefl_PUT_BITS(d->m_dict[(d->m_lz_code_buf_dict_pos + i) & sed_tdefl_LZ_DICT_SIZE_MASK], 8);
    }
  }
  // Check for the extremely unlikely (if not impossible) case of the compressed block not fitting into the output buffer when using dynamic codes.
  else if (!comp_block_succeeded)
  {
    d->m_pOutput_buf = pSaved_output_buf; d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
    sed_tdefl_compress_block(d, sed_mz_TRUE);
  }

  if (flush)
  {
    if (flush == sed_tdefl_FINISH)
    {
      if (d->m_bits_in) { sed_tdefl_PUT_BITS(0, 8 - d->m_bits_in); }
      if (d->m_flags & sed_tdefl_WRITE_ZLIB_HEADER) { sed_mz_uint i, a = d->m_adler32; for (i = 0; i < 4; i++) { sed_tdefl_PUT_BITS((a >> 24) & 0xFF, 8); a <<= 8; } }
    }
    else
    {
      sed_mz_uint i, z = 0; sed_tdefl_PUT_BITS(0, 3); if (d->m_bits_in) { sed_tdefl_PUT_BITS(0, 8 - d->m_bits_in); } for (i = 2; i; --i, z ^= 0xFFFF) { sed_tdefl_PUT_BITS(z & 0xFFFF, 16); }
    }
  }

  sed_mz_ASSERT(d->m_pOutput_buf < d->m_pOutput_buf_end);

  memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * sed_tdefl_MAX_HUFF_SYMBOLS_0);
  memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * sed_tdefl_MAX_HUFF_SYMBOLS_1);

  d->m_pLZ_code_buf = d->m_lz_code_buf + 1; d->m_pLZ_flags = d->m_lz_code_buf; d->m_num_flags_left = 8; d->m_lz_code_buf_dict_pos += d->m_total_lz_bytes; d->m_total_lz_bytes = 0; d->m_block_index++;

  if ((n = (int)(d->m_pOutput_buf - pOutput_buf_start)) != 0)
  {
    if (d->m_pPut_buf_func)
    {
      *d->m_pIn_buf_size = d->m_pSrc - (const sed_mz_uint8 *)d->m_pIn_buf;
      if (!(*d->m_pPut_buf_func)(d->m_output_buf, n, d->m_pPut_buf_user))
        return (d->m_prev_return_status = sed_tdefl_STATUS_PUT_BUF_FAILED);
    }
    else if (pOutput_buf_start == d->m_output_buf)
    {
      int bytes_to_copy = (int)sed_mz_MIN((size_t)n, (size_t)(*d->m_pOut_buf_size - d->m_out_buf_ofs));
      memcpy((sed_mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf, bytes_to_copy);
      d->m_out_buf_ofs += bytes_to_copy;
      if ((n -= bytes_to_copy) != 0)
      {
        d->m_output_flush_ofs = bytes_to_copy;
        d->m_output_flush_remaining = n;
      }
    }
    else
    {
      d->m_out_buf_ofs += n;
    }
  }

  return d->m_output_flush_remaining;
}

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
#define sed_tdefl_READ_UNALIGNED_WORD(p) *(const sed_mz_uint16*)(p)
static sed_mz_FORCEINLINE void sed_tdefl_find_match(sed_tdefl_compressor *d, sed_mz_uint lookahead_pos, sed_mz_uint max_dist, sed_mz_uint max_match_len, sed_mz_uint *pMatch_dist, sed_mz_uint *pMatch_len)
{
  sed_mz_uint dist, pos = lookahead_pos & sed_tdefl_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len;
  sed_mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
  const sed_mz_uint16 *s = (const sed_mz_uint16*)(d->m_dict + pos), *p, *q;
  sed_mz_uint16 c01 = sed_tdefl_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]), s01 = sed_tdefl_READ_UNALIGNED_WORD(s);
  sed_mz_ASSERT(max_match_len <= sed_tdefl_MAX_MATCH_LEN); if (max_match_len <= match_len) return;
  for ( ; ; )
  {
    for ( ; ; )
    {
      if (--num_probes_left == 0) return;
      #define sed_tdefl_PROBE \
        next_probe_pos = d->m_next[probe_pos]; \
        if ((!next_probe_pos) || ((dist = (sed_mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) return; \
        probe_pos = next_probe_pos & sed_tdefl_LZ_DICT_SIZE_MASK; \
        if (sed_tdefl_READ_UNALIGNED_WORD(&d->m_dict[probe_pos + match_len - 1]) == c01) break;
      sed_tdefl_PROBE; sed_tdefl_PROBE; sed_tdefl_PROBE;
    }
    if (!dist) break; q = (const sed_mz_uint16*)(d->m_dict + probe_pos); if (sed_tdefl_READ_UNALIGNED_WORD(q) != s01) continue; p = s; probe_len = 32;
    do { } while ( (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) && (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) &&
                   (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) && (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) && (--probe_len > 0) );
    if (!probe_len)
    {
      *pMatch_dist = dist; *pMatch_len = sed_mz_MIN(max_match_len, sed_tdefl_MAX_MATCH_LEN); break;
    }
    else if ((probe_len = ((sed_mz_uint)(p - s) * 2) + (sed_mz_uint)(*(const sed_mz_uint8*)p == *(const sed_mz_uint8*)q)) > match_len)
    {
      *pMatch_dist = dist; if ((*pMatch_len = match_len = sed_mz_MIN(max_match_len, probe_len)) == max_match_len) break;
      c01 = sed_tdefl_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]);
    }
  }
}
#else
static sed_mz_FORCEINLINE void sed_tdefl_find_match(sed_tdefl_compressor *d, sed_mz_uint lookahead_pos, sed_mz_uint max_dist, sed_mz_uint max_match_len, sed_mz_uint *pMatch_dist, sed_mz_uint *pMatch_len)
{
  sed_mz_uint dist, pos = lookahead_pos & sed_tdefl_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len;
  sed_mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
  const sed_mz_uint8 *s = d->m_dict + pos, *p, *q;
  sed_mz_uint8 c0 = d->m_dict[pos + match_len], c1 = d->m_dict[pos + match_len - 1];
  sed_mz_ASSERT(max_match_len <= sed_tdefl_MAX_MATCH_LEN); if (max_match_len <= match_len) return;
  for ( ; ; )
  {
    for ( ; ; )
    {
      if (--num_probes_left == 0) return;
      #define sed_tdefl_PROBE \
        next_probe_pos = d->m_next[probe_pos]; \
        if ((!next_probe_pos) || ((dist = (sed_mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) return; \
        probe_pos = next_probe_pos & sed_tdefl_LZ_DICT_SIZE_MASK; \
        if ((d->m_dict[probe_pos + match_len] == c0) && (d->m_dict[probe_pos + match_len - 1] == c1)) break;
      sed_tdefl_PROBE; sed_tdefl_PROBE; sed_tdefl_PROBE;
    }
    if (!dist) break; p = s; q = d->m_dict + probe_pos; for (probe_len = 0; probe_len < max_match_len; probe_len++) if (*p++ != *q++) break;
    if (probe_len > match_len)
    {
      *pMatch_dist = dist; if ((*pMatch_len = match_len = probe_len) == max_match_len) return;
      c0 = d->m_dict[pos + match_len]; c1 = d->m_dict[pos + match_len - 1];
    }
  }
}
#endif // #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
static sed_mz_bool sed_tdefl_compress_fast(sed_tdefl_compressor *d)
{
  // Faster, minimally featured LZRW1-style match+parse loop with better register utilization. Intended for applications where raw throughput is valued more highly than ratio.
  sed_mz_uint lookahead_pos = d->m_lookahead_pos, lookahead_size = d->m_lookahead_size, dict_size = d->m_dict_size, total_lz_bytes = d->m_total_lz_bytes, num_flags_left = d->m_num_flags_left;
  sed_mz_uint8 *pLZ_code_buf = d->m_pLZ_code_buf, *pLZ_flags = d->m_pLZ_flags;
  sed_mz_uint cur_pos = lookahead_pos & sed_tdefl_LZ_DICT_SIZE_MASK;

  while ((d->m_src_buf_left) || ((d->m_flush) && (lookahead_size)))
  {
    const sed_mz_uint sed_tdefl_COMP_FAST_LOOKAHEAD_SIZE = 4096;
    sed_mz_uint dst_pos = (lookahead_pos + lookahead_size) & sed_tdefl_LZ_DICT_SIZE_MASK;
    sed_mz_uint num_bytes_to_process = (sed_mz_uint)sed_mz_MIN(d->m_src_buf_left, sed_tdefl_COMP_FAST_LOOKAHEAD_SIZE - lookahead_size);
    d->m_src_buf_left -= num_bytes_to_process;
    lookahead_size += num_bytes_to_process;

    while (num_bytes_to_process)
    {
      sed_mz_uint32 n = sed_mz_MIN(sed_tdefl_LZ_DICT_SIZE - dst_pos, num_bytes_to_process);
      memcpy(d->m_dict + dst_pos, d->m_pSrc, n);
      if (dst_pos < (sed_tdefl_MAX_MATCH_LEN - 1))
        memcpy(d->m_dict + sed_tdefl_LZ_DICT_SIZE + dst_pos, d->m_pSrc, sed_mz_MIN(n, (sed_tdefl_MAX_MATCH_LEN - 1) - dst_pos));
      d->m_pSrc += n;
      dst_pos = (dst_pos + n) & sed_tdefl_LZ_DICT_SIZE_MASK;
      num_bytes_to_process -= n;
    }

    dict_size = sed_mz_MIN(sed_tdefl_LZ_DICT_SIZE - lookahead_size, dict_size);
    if ((!d->m_flush) && (lookahead_size < sed_tdefl_COMP_FAST_LOOKAHEAD_SIZE)) break;

    while (lookahead_size >= 4)
    {
      sed_mz_uint cur_match_dist, cur_match_len = 1;
      sed_mz_uint8 *pCur_dict = d->m_dict + cur_pos;
      sed_mz_uint first_trigram = (*(const sed_mz_uint32 *)pCur_dict) & 0xFFFFFF;
      sed_mz_uint hash = (first_trigram ^ (first_trigram >> (24 - (sed_tdefl_LZ_HASH_BITS - 8)))) & sed_tdefl_LEVEL1_HASH_SIZE_MASK;
      sed_mz_uint probe_pos = d->m_hash[hash];
      d->m_hash[hash] = (sed_mz_uint16)lookahead_pos;

      if (((cur_match_dist = (sed_mz_uint16)(lookahead_pos - probe_pos)) <= dict_size) && ((*(const sed_mz_uint32 *)(d->m_dict + (probe_pos &= sed_tdefl_LZ_DICT_SIZE_MASK)) & 0xFFFFFF) == first_trigram))
      {
        const sed_mz_uint16 *p = (const sed_mz_uint16 *)pCur_dict;
        const sed_mz_uint16 *q = (const sed_mz_uint16 *)(d->m_dict + probe_pos);
        sed_mz_uint32 probe_len = 32;
        do { } while ( (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) && (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) &&
          (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) && (sed_tdefl_READ_UNALIGNED_WORD(++p) == sed_tdefl_READ_UNALIGNED_WORD(++q)) && (--probe_len > 0) );
        cur_match_len = ((sed_mz_uint)(p - (const sed_mz_uint16 *)pCur_dict) * 2) + (sed_mz_uint)(*(const sed_mz_uint8 *)p == *(const sed_mz_uint8 *)q);
        if (!probe_len)
          cur_match_len = cur_match_dist ? sed_tdefl_MAX_MATCH_LEN : 0;

        if ((cur_match_len < sed_tdefl_MIN_MATCH_LEN) || ((cur_match_len == sed_tdefl_MIN_MATCH_LEN) && (cur_match_dist >= 8U*1024U)))
        {
          cur_match_len = 1;
          *pLZ_code_buf++ = (sed_mz_uint8)first_trigram;
          *pLZ_flags = (sed_mz_uint8)(*pLZ_flags >> 1);
          d->m_huff_count[0][(sed_mz_uint8)first_trigram]++;
        }
        else
        {
          sed_mz_uint32 s0, s1;
          cur_match_len = sed_mz_MIN(cur_match_len, lookahead_size);

          sed_mz_ASSERT((cur_match_len >= sed_tdefl_MIN_MATCH_LEN) && (cur_match_dist >= 1) && (cur_match_dist <= sed_tdefl_LZ_DICT_SIZE));

          cur_match_dist--;

          pLZ_code_buf[0] = (sed_mz_uint8)(cur_match_len - sed_tdefl_MIN_MATCH_LEN);
          *(sed_mz_uint16 *)(&pLZ_code_buf[1]) = (sed_mz_uint16)cur_match_dist;
          pLZ_code_buf += 3;
          *pLZ_flags = (sed_mz_uint8)((*pLZ_flags >> 1) | 0x80);

          s0 = s_sed_tdefl_small_dist_sym[cur_match_dist & 511];
          s1 = s_sed_tdefl_large_dist_sym[cur_match_dist >> 8];
          d->m_huff_count[1][(cur_match_dist < 512) ? s0 : s1]++;

          d->m_huff_count[0][s_sed_tdefl_len_sym[cur_match_len - sed_tdefl_MIN_MATCH_LEN]]++;
        }
      }
      else
      {
        *pLZ_code_buf++ = (sed_mz_uint8)first_trigram;
        *pLZ_flags = (sed_mz_uint8)(*pLZ_flags >> 1);
        d->m_huff_count[0][(sed_mz_uint8)first_trigram]++;
      }

      if (--num_flags_left == 0) { num_flags_left = 8; pLZ_flags = pLZ_code_buf++; }

      total_lz_bytes += cur_match_len;
      lookahead_pos += cur_match_len;
      dict_size = sed_mz_MIN(dict_size + cur_match_len, sed_tdefl_LZ_DICT_SIZE);
      cur_pos = (cur_pos + cur_match_len) & sed_tdefl_LZ_DICT_SIZE_MASK;
      sed_mz_ASSERT(lookahead_size >= cur_match_len);
      lookahead_size -= cur_match_len;

      if (pLZ_code_buf > &d->m_lz_code_buf[sed_tdefl_LZ_CODE_BUF_SIZE - 8])
      {
        int n;
        d->m_lookahead_pos = lookahead_pos; d->m_lookahead_size = lookahead_size; d->m_dict_size = dict_size;
        d->m_total_lz_bytes = total_lz_bytes; d->m_pLZ_code_buf = pLZ_code_buf; d->m_pLZ_flags = pLZ_flags; d->m_num_flags_left = num_flags_left;
        if ((n = sed_tdefl_flush_block(d, 0)) != 0)
          return (n < 0) ? sed_mz_FALSE : sed_mz_TRUE;
        total_lz_bytes = d->m_total_lz_bytes; pLZ_code_buf = d->m_pLZ_code_buf; pLZ_flags = d->m_pLZ_flags; num_flags_left = d->m_num_flags_left;
      }
    }

    while (lookahead_size)
    {
      sed_mz_uint8 lit = d->m_dict[cur_pos];

      total_lz_bytes++;
      *pLZ_code_buf++ = lit;
      *pLZ_flags = (sed_mz_uint8)(*pLZ_flags >> 1);
      if (--num_flags_left == 0) { num_flags_left = 8; pLZ_flags = pLZ_code_buf++; }

      d->m_huff_count[0][lit]++;

      lookahead_pos++;
      dict_size = sed_mz_MIN(dict_size + 1, sed_tdefl_LZ_DICT_SIZE);
      cur_pos = (cur_pos + 1) & sed_tdefl_LZ_DICT_SIZE_MASK;
      lookahead_size--;

      if (pLZ_code_buf > &d->m_lz_code_buf[sed_tdefl_LZ_CODE_BUF_SIZE - 8])
      {
        int n;
        d->m_lookahead_pos = lookahead_pos; d->m_lookahead_size = lookahead_size; d->m_dict_size = dict_size;
        d->m_total_lz_bytes = total_lz_bytes; d->m_pLZ_code_buf = pLZ_code_buf; d->m_pLZ_flags = pLZ_flags; d->m_num_flags_left = num_flags_left;
        if ((n = sed_tdefl_flush_block(d, 0)) != 0)
          return (n < 0) ? sed_mz_FALSE : sed_mz_TRUE;
        total_lz_bytes = d->m_total_lz_bytes; pLZ_code_buf = d->m_pLZ_code_buf; pLZ_flags = d->m_pLZ_flags; num_flags_left = d->m_num_flags_left;
      }
    }
  }

  d->m_lookahead_pos = lookahead_pos; d->m_lookahead_size = lookahead_size; d->m_dict_size = dict_size;
  d->m_total_lz_bytes = total_lz_bytes; d->m_pLZ_code_buf = pLZ_code_buf; d->m_pLZ_flags = pLZ_flags; d->m_num_flags_left = num_flags_left;
  return sed_mz_TRUE;
}
#endif // MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN

static sed_mz_FORCEINLINE void sed_tdefl_record_literal(sed_tdefl_compressor *d, sed_mz_uint8 lit)
{
  d->m_total_lz_bytes++;
  *d->m_pLZ_code_buf++ = lit;
  *d->m_pLZ_flags = (sed_mz_uint8)(*d->m_pLZ_flags >> 1); if (--d->m_num_flags_left == 0) { d->m_num_flags_left = 8; d->m_pLZ_flags = d->m_pLZ_code_buf++; }
  d->m_huff_count[0][lit]++;
}

static sed_mz_FORCEINLINE void sed_tdefl_record_match(sed_tdefl_compressor *d, sed_mz_uint match_len, sed_mz_uint match_dist)
{
  sed_mz_uint32 s0, s1;

  sed_mz_ASSERT((match_len >= sed_tdefl_MIN_MATCH_LEN) && (match_dist >= 1) && (match_dist <= sed_tdefl_LZ_DICT_SIZE));

  d->m_total_lz_bytes += match_len;

  d->m_pLZ_code_buf[0] = (sed_mz_uint8)(match_len - sed_tdefl_MIN_MATCH_LEN);

  match_dist -= 1;
  d->m_pLZ_code_buf[1] = (sed_mz_uint8)(match_dist & 0xFF);
  d->m_pLZ_code_buf[2] = (sed_mz_uint8)(match_dist >> 8); d->m_pLZ_code_buf += 3;

  *d->m_pLZ_flags = (sed_mz_uint8)((*d->m_pLZ_flags >> 1) | 0x80); if (--d->m_num_flags_left == 0) { d->m_num_flags_left = 8; d->m_pLZ_flags = d->m_pLZ_code_buf++; }

  s0 = s_sed_tdefl_small_dist_sym[match_dist & 511]; s1 = s_sed_tdefl_large_dist_sym[(match_dist >> 8) & 127];
  d->m_huff_count[1][(match_dist < 512) ? s0 : s1]++;

  if (match_len >= sed_tdefl_MIN_MATCH_LEN) d->m_huff_count[0][s_sed_tdefl_len_sym[match_len - sed_tdefl_MIN_MATCH_LEN]]++;
}

static sed_mz_bool sed_tdefl_compress_normal(sed_tdefl_compressor *d)
{
  const sed_mz_uint8 *pSrc = d->m_pSrc; size_t src_buf_left = d->m_src_buf_left;
  sed_tdefl_flush flush = d->m_flush;

  while ((src_buf_left) || ((flush) && (d->m_lookahead_size)))
  {
    sed_mz_uint len_to_move, cur_match_dist, cur_match_len, cur_pos;
    // Update dictionary and hash chains. Keeps the lookahead size equal to sed_tdefl_MAX_MATCH_LEN.
    if ((d->m_lookahead_size + d->m_dict_size) >= (sed_tdefl_MIN_MATCH_LEN - 1))
    {
      sed_mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & sed_tdefl_LZ_DICT_SIZE_MASK, ins_pos = d->m_lookahead_pos + d->m_lookahead_size - 2;
      sed_mz_uint hash = (d->m_dict[ins_pos & sed_tdefl_LZ_DICT_SIZE_MASK] << sed_tdefl_LZ_HASH_SHIFT) ^ d->m_dict[(ins_pos + 1) & sed_tdefl_LZ_DICT_SIZE_MASK];
      sed_mz_uint num_bytes_to_process = (sed_mz_uint)sed_mz_MIN(src_buf_left, sed_tdefl_MAX_MATCH_LEN - d->m_lookahead_size);
      const sed_mz_uint8 *pSrc_end = pSrc + num_bytes_to_process;
      src_buf_left -= num_bytes_to_process;
      d->m_lookahead_size += num_bytes_to_process;
      while (pSrc != pSrc_end)
      {
        sed_mz_uint8 c = *pSrc++; d->m_dict[dst_pos] = c; if (dst_pos < (sed_tdefl_MAX_MATCH_LEN - 1)) d->m_dict[sed_tdefl_LZ_DICT_SIZE + dst_pos] = c;
        hash = ((hash << sed_tdefl_LZ_HASH_SHIFT) ^ c) & (sed_tdefl_LZ_HASH_SIZE - 1);
        d->m_next[ins_pos & sed_tdefl_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; d->m_hash[hash] = (sed_mz_uint16)(ins_pos);
        dst_pos = (dst_pos + 1) & sed_tdefl_LZ_DICT_SIZE_MASK; ins_pos++;
      }
    }
    else
    {
      while ((src_buf_left) && (d->m_lookahead_size < sed_tdefl_MAX_MATCH_LEN))
      {
        sed_mz_uint8 c = *pSrc++;
        sed_mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & sed_tdefl_LZ_DICT_SIZE_MASK;
        src_buf_left--;
        d->m_dict[dst_pos] = c;
        if (dst_pos < (sed_tdefl_MAX_MATCH_LEN - 1))
          d->m_dict[sed_tdefl_LZ_DICT_SIZE + dst_pos] = c;
        if ((++d->m_lookahead_size + d->m_dict_size) >= sed_tdefl_MIN_MATCH_LEN)
        {
          sed_mz_uint ins_pos = d->m_lookahead_pos + (d->m_lookahead_size - 1) - 2;
          sed_mz_uint hash = ((d->m_dict[ins_pos & sed_tdefl_LZ_DICT_SIZE_MASK] << (sed_tdefl_LZ_HASH_SHIFT * 2)) ^ (d->m_dict[(ins_pos + 1) & sed_tdefl_LZ_DICT_SIZE_MASK] << sed_tdefl_LZ_HASH_SHIFT) ^ c) & (sed_tdefl_LZ_HASH_SIZE - 1);
          d->m_next[ins_pos & sed_tdefl_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; d->m_hash[hash] = (sed_mz_uint16)(ins_pos);
        }
      }
    }
    d->m_dict_size = sed_mz_MIN(sed_tdefl_LZ_DICT_SIZE - d->m_lookahead_size, d->m_dict_size);
    if ((!flush) && (d->m_lookahead_size < sed_tdefl_MAX_MATCH_LEN))
      break;

    // Simple lazy/greedy parsing state machine.
    len_to_move = 1; cur_match_dist = 0; cur_match_len = d->m_saved_match_len ? d->m_saved_match_len : (sed_tdefl_MIN_MATCH_LEN - 1); cur_pos = d->m_lookahead_pos & sed_tdefl_LZ_DICT_SIZE_MASK;
    if (d->m_flags & (sed_tdefl_RLE_MATCHES | sed_tdefl_FORCE_ALL_RAW_BLOCKS))
    {
      if ((d->m_dict_size) && (!(d->m_flags & sed_tdefl_FORCE_ALL_RAW_BLOCKS)))
      {
        sed_mz_uint8 c = d->m_dict[(cur_pos - 1) & sed_tdefl_LZ_DICT_SIZE_MASK];
        cur_match_len = 0; while (cur_match_len < d->m_lookahead_size) { if (d->m_dict[cur_pos + cur_match_len] != c) break; cur_match_len++; }
        if (cur_match_len < sed_tdefl_MIN_MATCH_LEN) cur_match_len = 0; else cur_match_dist = 1;
      }
    }
    else
    {
      sed_tdefl_find_match(d, d->m_lookahead_pos, d->m_dict_size, d->m_lookahead_size, &cur_match_dist, &cur_match_len);
    }
    if (((cur_match_len == sed_tdefl_MIN_MATCH_LEN) && (cur_match_dist >= 8U*1024U)) || (cur_pos == cur_match_dist) || ((d->m_flags & sed_tdefl_FILTER_MATCHES) && (cur_match_len <= 5)))
    {
      cur_match_dist = cur_match_len = 0;
    }
    if (d->m_saved_match_len)
    {
      if (cur_match_len > d->m_saved_match_len)
      {
        sed_tdefl_record_literal(d, (sed_mz_uint8)d->m_saved_lit);
        if (cur_match_len >= 128)
        {
          sed_tdefl_record_match(d, cur_match_len, cur_match_dist);
          d->m_saved_match_len = 0; len_to_move = cur_match_len;
        }
        else
        {
          d->m_saved_lit = d->m_dict[cur_pos]; d->m_saved_match_dist = cur_match_dist; d->m_saved_match_len = cur_match_len;
        }
      }
      else
      {
        sed_tdefl_record_match(d, d->m_saved_match_len, d->m_saved_match_dist);
        len_to_move = d->m_saved_match_len - 1; d->m_saved_match_len = 0;
      }
    }
    else if (!cur_match_dist)
      sed_tdefl_record_literal(d, d->m_dict[sed_mz_MIN(cur_pos, sizeof(d->m_dict) - 1)]);
    else if ((d->m_greedy_parsing) || (d->m_flags & sed_tdefl_RLE_MATCHES) || (cur_match_len >= 128))
    {
      sed_tdefl_record_match(d, cur_match_len, cur_match_dist);
      len_to_move = cur_match_len;
    }
    else
    {
      d->m_saved_lit = d->m_dict[sed_mz_MIN(cur_pos, sizeof(d->m_dict) - 1)]; d->m_saved_match_dist = cur_match_dist; d->m_saved_match_len = cur_match_len;
    }
    // Move the lookahead forward by len_to_move bytes.
    d->m_lookahead_pos += len_to_move;
    sed_mz_ASSERT(d->m_lookahead_size >= len_to_move);
    d->m_lookahead_size -= len_to_move;
    d->m_dict_size = sed_mz_MIN(d->m_dict_size + len_to_move, sed_tdefl_LZ_DICT_SIZE);
    // Check if it's time to flush the current LZ codes to the internal output buffer.
    if ( (d->m_pLZ_code_buf > &d->m_lz_code_buf[sed_tdefl_LZ_CODE_BUF_SIZE - 8]) ||
         ( (d->m_total_lz_bytes > 31*1024) && (((((sed_mz_uint)(d->m_pLZ_code_buf - d->m_lz_code_buf) * 115) >> 7) >= d->m_total_lz_bytes) || (d->m_flags & sed_tdefl_FORCE_ALL_RAW_BLOCKS))) )
    {
      int n;
      d->m_pSrc = pSrc; d->m_src_buf_left = src_buf_left;
      if ((n = sed_tdefl_flush_block(d, 0)) != 0)
        return (n < 0) ? sed_mz_FALSE : sed_mz_TRUE;
    }
  }

  d->m_pSrc = pSrc; d->m_src_buf_left = src_buf_left;
  return sed_mz_TRUE;
}

static sed_tdefl_status sed_tdefl_flush_output_buffer(sed_tdefl_compressor *d)
{
  if (d->m_pIn_buf_size)
  {
    *d->m_pIn_buf_size = d->m_pSrc - (const sed_mz_uint8 *)d->m_pIn_buf;
  }

  if (d->m_pOut_buf_size)
  {
    size_t n = sed_mz_MIN(*d->m_pOut_buf_size - d->m_out_buf_ofs, d->m_output_flush_remaining);
    memcpy((sed_mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf + d->m_output_flush_ofs, n);
    d->m_output_flush_ofs += (sed_mz_uint)n;
    d->m_output_flush_remaining -= (sed_mz_uint)n;
    d->m_out_buf_ofs += n;

    *d->m_pOut_buf_size = d->m_out_buf_ofs;
  }

  return (d->m_finished && !d->m_output_flush_remaining) ? sed_tdefl_STATUS_DONE : sed_tdefl_STATUS_OKAY;
}

sed_tdefl_status sed_tdefl_compress(sed_tdefl_compressor *d, const void *pIn_buf, size_t *pIn_buf_size, void *pOut_buf, size_t *pOut_buf_size, sed_tdefl_flush flush)
{
  if (!d)
  {
    if (pIn_buf_size) *pIn_buf_size = 0;
    if (pOut_buf_size) *pOut_buf_size = 0;
    return sed_tdefl_STATUS_BAD_PARAM;
  }

  d->m_pIn_buf = pIn_buf; d->m_pIn_buf_size = pIn_buf_size;
  d->m_pOut_buf = pOut_buf; d->m_pOut_buf_size = pOut_buf_size;
  d->m_pSrc = (const sed_mz_uint8 *)(pIn_buf); d->m_src_buf_left = pIn_buf_size ? *pIn_buf_size : 0;
  d->m_out_buf_ofs = 0;
  d->m_flush = flush;

  if ( ((d->m_pPut_buf_func != NULL) == ((pOut_buf != NULL) || (pOut_buf_size != NULL))) || (d->m_prev_return_status != sed_tdefl_STATUS_OKAY) ||
        (d->m_wants_to_finish && (flush != sed_tdefl_FINISH)) || (pIn_buf_size && *pIn_buf_size && !pIn_buf) || (pOut_buf_size && *pOut_buf_size && !pOut_buf) )
  {
    if (pIn_buf_size) *pIn_buf_size = 0;
    if (pOut_buf_size) *pOut_buf_size = 0;
    return (d->m_prev_return_status = sed_tdefl_STATUS_BAD_PARAM);
  }
  d->m_wants_to_finish |= (flush == sed_tdefl_FINISH);

  if ((d->m_output_flush_remaining) || (d->m_finished))
    return (d->m_prev_return_status = sed_tdefl_flush_output_buffer(d));

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
  if (((d->m_flags & sed_tdefl_MAX_PROBES_MASK) == 1) &&
      ((d->m_flags & sed_tdefl_GREEDY_PARSING_FLAG) != 0) &&
      ((d->m_flags & (sed_tdefl_FILTER_MATCHES | sed_tdefl_FORCE_ALL_RAW_BLOCKS | sed_tdefl_RLE_MATCHES)) == 0))
  {
    if (!sed_tdefl_compress_fast(d))
      return d->m_prev_return_status;
  }
  else
#endif // #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
  {
    if (!sed_tdefl_compress_normal(d))
      return d->m_prev_return_status;
  }

  if ((d->m_flags & (sed_tdefl_WRITE_ZLIB_HEADER | sed_tdefl_COMPUTE_ADLER32)) && (pIn_buf))
    d->m_adler32 = (sed_mz_uint32)sed_mz_adler32(d->m_adler32, (const sed_mz_uint8 *)pIn_buf, d->m_pSrc - (const sed_mz_uint8 *)pIn_buf);

  if ((flush) && (!d->m_lookahead_size) && (!d->m_src_buf_left) && (!d->m_output_flush_remaining))
  {
    if (sed_tdefl_flush_block(d, flush) < 0)
      return d->m_prev_return_status;
    d->m_finished = (flush == sed_tdefl_FINISH);
    if (flush == sed_tdefl_FULL_FLUSH) { sed_mz_CLEAR_OBJ(d->m_hash); sed_mz_CLEAR_OBJ(d->m_next); d->m_dict_size = 0; }
  }

  return (d->m_prev_return_status = sed_tdefl_flush_output_buffer(d));
}

sed_tdefl_status sed_tdefl_compress_buffer(sed_tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, sed_tdefl_flush flush)
{
  sed_mz_ASSERT(d->m_pPut_buf_func); return sed_tdefl_compress(d, pIn_buf, &in_buf_size, NULL, NULL, flush);
}

sed_tdefl_status sed_tdefl_init(sed_tdefl_compressor *d, sed_tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
{
  d->m_pPut_buf_func = pPut_buf_func; d->m_pPut_buf_user = pPut_buf_user;
  d->m_flags = (sed_mz_uint)(flags); d->m_max_probes[0] = 1 + ((flags & 0xFFF) + 2) / 3; d->m_greedy_parsing = (flags & sed_tdefl_GREEDY_PARSING_FLAG) != 0;
  d->m_max_probes[1] = 1 + (((flags & 0xFFF) >> 2) + 2) / 3;
  if (!(flags & sed_tdefl_NONDETERMINISTIC_PARSING_FLAG)) sed_mz_CLEAR_OBJ(d->m_hash);
  d->m_lookahead_pos = d->m_lookahead_size = d->m_dict_size = d->m_total_lz_bytes = d->m_lz_code_buf_dict_pos = d->m_bits_in = 0;
  d->m_output_flush_ofs = d->m_output_flush_remaining = d->m_finished = d->m_block_index = d->m_bit_buffer = d->m_wants_to_finish = 0;
  d->m_pLZ_code_buf = d->m_lz_code_buf + 1; d->m_pLZ_flags = d->m_lz_code_buf; d->m_num_flags_left = 8;
  d->m_pOutput_buf = d->m_output_buf; d->m_pOutput_buf_end = d->m_output_buf; d->m_prev_return_status = sed_tdefl_STATUS_OKAY;
  d->m_saved_match_dist = d->m_saved_match_len = d->m_saved_lit = 0; d->m_adler32 = 1;
  d->m_pIn_buf = NULL; d->m_pOut_buf = NULL;
  d->m_pIn_buf_size = NULL; d->m_pOut_buf_size = NULL;
  d->m_flush = sed_tdefl_NO_FLUSH; d->m_pSrc = NULL; d->m_src_buf_left = 0; d->m_out_buf_ofs = 0;
  memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * sed_tdefl_MAX_HUFF_SYMBOLS_0);
  memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * sed_tdefl_MAX_HUFF_SYMBOLS_1);
  return sed_tdefl_STATUS_OKAY;
}

sed_tdefl_status sed_tdefl_get_prev_return_status(sed_tdefl_compressor *d)
{
  return d->m_prev_return_status;
}

sed_mz_uint32 sed_tdefl_get_adler32(sed_tdefl_compressor *d)
{
  return d->m_adler32;
}

sed_mz_bool sed_tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, sed_tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
{
  sed_tdefl_compressor *pComp; sed_mz_bool succeeded; if (((buf_len) && (!pBuf)) || (!pPut_buf_func)) return sed_mz_FALSE;
  pComp = (sed_tdefl_compressor*)sed_mz_MALLOC(sizeof(sed_tdefl_compressor)); if (!pComp) return sed_mz_FALSE;
  succeeded = (sed_tdefl_init(pComp, pPut_buf_func, pPut_buf_user, flags) == sed_tdefl_STATUS_OKAY);
  succeeded = succeeded && (sed_tdefl_compress_buffer(pComp, pBuf, buf_len, sed_tdefl_FINISH) == sed_tdefl_STATUS_DONE);
  sed_mz_FREE(pComp); return succeeded;
}

typedef struct
{
  size_t m_size, m_capacity;
  sed_mz_uint8 *m_pBuf;
  sed_mz_bool m_expandable;
} sed_tdefl_output_buffer;

static sed_mz_bool sed_tdefl_output_buffer_putter(const void *pBuf, int len, void *pUser)
{
  sed_tdefl_output_buffer *p = (sed_tdefl_output_buffer *)pUser;
  size_t new_size = p->m_size + len;
  if (new_size > p->m_capacity)
  {
    size_t new_capacity = p->m_capacity; sed_mz_uint8 *pNew_buf; if (!p->m_expandable) return sed_mz_FALSE;
    do { new_capacity = sed_mz_MAX(128U, new_capacity << 1U); } while (new_size > new_capacity);
    pNew_buf = (sed_mz_uint8*)sed_mz_REALLOC(p->m_pBuf, new_capacity); if (!pNew_buf) return sed_mz_FALSE;
    p->m_pBuf = pNew_buf; p->m_capacity = new_capacity;
  }
  memcpy((sed_mz_uint8*)p->m_pBuf + p->m_size, pBuf, len); p->m_size = new_size;
  return sed_mz_TRUE;
}

void *sed_tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags)
{
  sed_tdefl_output_buffer out_buf; sed_mz_CLEAR_OBJ(out_buf);
  if (!pOut_len) return sed_mz_FALSE; else *pOut_len = 0;
  out_buf.m_expandable = sed_mz_TRUE;
  if (!sed_tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, sed_tdefl_output_buffer_putter, &out_buf, flags)) return NULL;
  *pOut_len = out_buf.m_size; return out_buf.m_pBuf;
}

size_t sed_tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags)
{
  sed_tdefl_output_buffer out_buf; sed_mz_CLEAR_OBJ(out_buf);
  if (!pOut_buf) return 0;
  out_buf.m_pBuf = (sed_mz_uint8*)pOut_buf; out_buf.m_capacity = out_buf_len;
  if (!sed_tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, sed_tdefl_output_buffer_putter, &out_buf, flags)) return 0;
  return out_buf.m_size;
}

#ifndef MINIZ_NO_ZLIB_APIS
static const sed_mz_uint s_sed_tdefl_num_probes[11] = { 0, 1, 6, 32,  16, 32, 128, 256,  512, 768, 1500 };

// level may actually range from [0,10] (10 is a "hidden" max level, where we want a bit more compression and it's fine if throughput to fall off a cliff on some files).
sed_mz_uint sed_tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy)
{
  sed_mz_uint comp_flags = s_sed_tdefl_num_probes[(level >= 0) ? sed_mz_MIN(10, level) : sed_mz_DEFAULT_LEVEL] | ((level <= 3) ? sed_tdefl_GREEDY_PARSING_FLAG : 0);
  if (window_bits > 0) comp_flags |= sed_tdefl_WRITE_ZLIB_HEADER;

  if (!level) comp_flags |= sed_tdefl_FORCE_ALL_RAW_BLOCKS;
  else if (strategy == sed_mz_FILTERED) comp_flags |= sed_tdefl_FILTER_MATCHES;
  else if (strategy == sed_mz_HUFFMAN_ONLY) comp_flags &= ~sed_tdefl_MAX_PROBES_MASK;
  else if (strategy == sed_mz_FIXED) comp_flags |= sed_tdefl_FORCE_ALL_STATIC_BLOCKS;
  else if (strategy == sed_mz_RLE) comp_flags |= sed_tdefl_RLE_MATCHES;

  return comp_flags;
}
#endif //MINIZ_NO_ZLIB_APIS

#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable:4204) // nonstandard extension used : non-constant aggregate initializer (also supported by GNU C and C99, so no big deal)
#endif

// Simple PNG writer function by Alex Evans, 2011. Released into the public domain: https://gist.github.com/908299, more context at
// http://altdevblogaday.org/2011/04/06/a-smaller-jpg-encoder/.
// This is actually a modification of Alex's original code so PNG files generated by this function pass pngcheck.
void *sed_tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int h, int num_chans, size_t *pLen_out, sed_mz_uint level, sed_mz_bool flip)
{
  // Using a local copy of this array here in case MINIZ_NO_ZLIB_APIS was defined.
  static const sed_mz_uint s_sed_tdefl_png_num_probes[11] = { 0, 1, 6, 32,  16, 32, 128, 256,  512, 768, 1500 };
  sed_tdefl_compressor *pComp = (sed_tdefl_compressor *)sed_mz_MALLOC(sizeof(sed_tdefl_compressor)); sed_tdefl_output_buffer out_buf; int i, bpl = w * num_chans, y, z; sed_mz_uint32 c; *pLen_out = 0;
  if (!pComp) return NULL;
  sed_mz_CLEAR_OBJ(out_buf); out_buf.m_expandable = sed_mz_TRUE; out_buf.m_capacity = 57+sed_mz_MAX(64, (1+bpl)*h); if (NULL == (out_buf.m_pBuf = (sed_mz_uint8*)sed_mz_MALLOC(out_buf.m_capacity))) { sed_mz_FREE(pComp); return NULL; }
  // write dummy header
  for (z = 41; z; --z) sed_tdefl_output_buffer_putter(&z, 1, &out_buf);
  // compress image data
  sed_tdefl_init(pComp, sed_tdefl_output_buffer_putter, &out_buf, s_sed_tdefl_png_num_probes[sed_mz_MIN(10, level)] | sed_tdefl_WRITE_ZLIB_HEADER);
  for (y = 0; y < h; ++y) { sed_tdefl_compress_buffer(pComp, &z, 1, sed_tdefl_NO_FLUSH); sed_tdefl_compress_buffer(pComp, (sed_mz_uint8*)pImage + (flip ? (h - 1 - y) : y) * bpl, bpl, sed_tdefl_NO_FLUSH); }
  if (sed_tdefl_compress_buffer(pComp, NULL, 0, sed_tdefl_FINISH) != sed_tdefl_STATUS_DONE) { sed_mz_FREE(pComp); sed_mz_FREE(out_buf.m_pBuf); return NULL; }
  // write real header
  *pLen_out = out_buf.m_size-41;
  {
    static const sed_mz_uint8 chans[] = {0x00, 0x00, 0x04, 0x02, 0x06};
    sed_mz_uint8 pnghdr[41]={0x89,0x50,0x4e,0x47,0x0d,0x0a,0x1a,0x0a,0x00,0x00,0x00,0x0d,0x49,0x48,0x44,0x52,
      0,0,(sed_mz_uint8)(w>>8),(sed_mz_uint8)w,0,0,(sed_mz_uint8)(h>>8),(sed_mz_uint8)h,8,chans[num_chans],0,0,0,0,0,0,0,
      (sed_mz_uint8)(*pLen_out>>24),(sed_mz_uint8)(*pLen_out>>16),(sed_mz_uint8)(*pLen_out>>8),(sed_mz_uint8)*pLen_out,0x49,0x44,0x41,0x54};
    c=(sed_mz_uint32)sed_mz_crc32(sed_mz_CRC32_INIT,pnghdr+12,17); for (i=0; i<4; ++i, c<<=8) ((sed_mz_uint8*)(pnghdr+29))[i]=(sed_mz_uint8)(c>>24);
    memcpy(out_buf.m_pBuf, pnghdr, 41);
  }
  // write footer (IDAT CRC-32, followed by IEND chunk)
  if (!sed_tdefl_output_buffer_putter("\0\0\0\0\0\0\0\0\x49\x45\x4e\x44\xae\x42\x60\x82", 16, &out_buf)) { *pLen_out = 0; sed_mz_FREE(pComp); sed_mz_FREE(out_buf.m_pBuf); return NULL; }
  c = (sed_mz_uint32)sed_mz_crc32(sed_mz_CRC32_INIT,out_buf.m_pBuf+41-4, *pLen_out+4); for (i=0; i<4; ++i, c<<=8) (out_buf.m_pBuf+out_buf.m_size-16)[i] = (sed_mz_uint8)(c >> 24);
  // compute final size of file, grab compressed data buffer and return
  *pLen_out += 57; sed_mz_FREE(pComp); return out_buf.m_pBuf;
}
void *sed_tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out)
{
  // Level 6 corresponds to sed_tdefl_DEFAULT_MAX_PROBES or sed_mz_DEFAULT_LEVEL (but we can't depend on sed_mz_DEFAULT_LEVEL being available in case the zlib API's where #defined out)
  return sed_tdefl_write_image_to_png_file_in_memory_ex(pImage, w, h, num_chans, pLen_out, 6, sed_mz_FALSE);
}

#ifdef _MSC_VER
#pragma warning (pop)
#endif

// ------------------- .ZIP archive reading

#ifndef MINIZ_NO_ARCHIVE_APIS

#ifdef MINIZ_NO_STDIO
  #define sed_mz_FILE void *
#else
  #include <stdio.h>
  #include <sys/stat.h>

  #if defined(_MSC_VER) || defined(__MINGW64__)
    static FILE *sed_mz_fopen(const char *pFilename, const char *pMode)
    {
      FILE* pFile = NULL;
      fopen_s(&pFile, pFilename, pMode);
      return pFile;
    }
    static FILE *sed_mz_freopen(const char *pPath, const char *pMode, FILE *pStream)
    {
      FILE* pFile = NULL;
      if (freopen_s(&pFile, pPath, pMode, pStream))
        return NULL;
      return pFile;
    }
    #ifndef MINIZ_NO_TIME
      #include <sys/utime.h>
    #endif
    #define sed_mz_FILE FILE
    #define sed_mz_FOPEN sed_mz_fopen
    #define sed_mz_FCLOSE fclose
    #define sed_mz_FREAD fread
    #define sed_mz_FWRITE fwrite
    #define sed_mz_FTELL64 _ftelli64
    #define sed_mz_FSEEK64 _fseeki64
    #define sed_mz_FILE_STAT_STRUCT _stat
    #define sed_mz_FILE_STAT _stat
    #define sed_mz_FFLUSH fflush
    #define sed_mz_FREOPEN sed_mz_freopen
    #define sed_mz_DELETE_FILE remove
  #elif defined(__MINGW32__)
    #ifndef MINIZ_NO_TIME
      #include <sys/utime.h>
    #endif
    #define sed_mz_FILE FILE
    #define sed_mz_FOPEN(f, m) fopen(f, m)
    #define sed_mz_FCLOSE fclose
    #define sed_mz_FREAD fread
    #define sed_mz_FWRITE fwrite
    #define sed_mz_FTELL64 ftello64
    #define sed_mz_FSEEK64 fseeko64
    #define sed_mz_FILE_STAT_STRUCT _stat
    #define sed_mz_FILE_STAT _stat
    #define sed_mz_FFLUSH fflush
    #define sed_mz_FREOPEN(f, m, s) freopen(f, m, s)
    #define sed_mz_DELETE_FILE remove
  #elif defined(__TINYC__)
    #ifndef MINIZ_NO_TIME
      #include <sys/utime.h>
    #endif
    #define sed_mz_FILE FILE
    #define sed_mz_FOPEN(f, m) fopen(f, m)
    #define sed_mz_FCLOSE fclose
    #define sed_mz_FREAD fread
    #define sed_mz_FWRITE fwrite
    #define sed_mz_FTELL64 ftell
    #define sed_mz_FSEEK64 fseek
    #define sed_mz_FILE_STAT_STRUCT stat
    #define sed_mz_FILE_STAT stat
    #define sed_mz_FFLUSH fflush
    #define sed_mz_FREOPEN(f, m, s) freopen(f, m, s)
    #define sed_mz_DELETE_FILE remove
  #elif defined(__GNUC__) && _LARGEFILE64_SOURCE
    #ifndef MINIZ_NO_TIME
      #include <utime.h>
    #endif
    #define sed_mz_FILE FILE
    #define sed_mz_FOPEN(f, m) fopen64(f, m)
    #define sed_mz_FCLOSE fclose
    #define sed_mz_FREAD fread
    #define sed_mz_FWRITE fwrite
    #define sed_mz_FTELL64 ftello64
    #define sed_mz_FSEEK64 fseeko64
    #define sed_mz_FILE_STAT_STRUCT stat64
    #define sed_mz_FILE_STAT stat64
    #define sed_mz_FFLUSH fflush
    #define sed_mz_FREOPEN(p, m, s) freopen64(p, m, s)
    #define sed_mz_DELETE_FILE remove
  #else
    #ifndef MINIZ_NO_TIME
      #include <utime.h>
    #endif
    #define sed_mz_FILE FILE
    #define sed_mz_FOPEN(f, m) fopen(f, m)
    #define sed_mz_FCLOSE fclose
    #define sed_mz_FREAD fread
    #define sed_mz_FWRITE fwrite
    #define sed_mz_FTELL64 ftello
    #define sed_mz_FSEEK64 fseeko
    #define sed_mz_FILE_STAT_STRUCT stat
    #define sed_mz_FILE_STAT stat
    #define sed_mz_FFLUSH fflush
    #define sed_mz_FREOPEN(f, m, s) freopen(f, m, s)
    #define sed_mz_DELETE_FILE remove
  #endif // #ifdef _MSC_VER
#endif // #ifdef MINIZ_NO_STDIO

#define sed_mz_TOLOWER(c) ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c))

// Various ZIP archive enums. To completely avoid cross platform compiler alignment and platform endian issues, miniz.c doesn't use structs for any of this stuff.
enum
{
  // ZIP archive identifiers and record sizes
  sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50, sed_mz_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50,
  sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE = 30, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE = 46, sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22,
  // Central directory header record offsets
  sed_mz_ZIP_CDH_SIG_OFS = 0, sed_mz_ZIP_CDH_VERSION_MADE_BY_OFS = 4, sed_mz_ZIP_CDH_VERSION_NEEDED_OFS = 6, sed_mz_ZIP_CDH_BIT_FLAG_OFS = 8,
  sed_mz_ZIP_CDH_METHOD_OFS = 10, sed_mz_ZIP_CDH_FILE_TIME_OFS = 12, sed_mz_ZIP_CDH_FILE_DATE_OFS = 14, sed_mz_ZIP_CDH_CRC32_OFS = 16,
  sed_mz_ZIP_CDH_COMPRESSED_SIZE_OFS = 20, sed_mz_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24, sed_mz_ZIP_CDH_FILENAME_LEN_OFS = 28, sed_mz_ZIP_CDH_EXTRA_LEN_OFS = 30,
  sed_mz_ZIP_CDH_COMMENT_LEN_OFS = 32, sed_mz_ZIP_CDH_DISK_START_OFS = 34, sed_mz_ZIP_CDH_INTERNAL_ATTR_OFS = 36, sed_mz_ZIP_CDH_EXTERNAL_ATTR_OFS = 38, sed_mz_ZIP_CDH_LOCAL_HEADER_OFS = 42,
  // Local directory header offsets
  sed_mz_ZIP_LDH_SIG_OFS = 0, sed_mz_ZIP_LDH_VERSION_NEEDED_OFS = 4, sed_mz_ZIP_LDH_BIT_FLAG_OFS = 6, sed_mz_ZIP_LDH_METHOD_OFS = 8, sed_mz_ZIP_LDH_FILE_TIME_OFS = 10,
  sed_mz_ZIP_LDH_FILE_DATE_OFS = 12, sed_mz_ZIP_LDH_CRC32_OFS = 14, sed_mz_ZIP_LDH_COMPRESSED_SIZE_OFS = 18, sed_mz_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22,
  sed_mz_ZIP_LDH_FILENAME_LEN_OFS = 26, sed_mz_ZIP_LDH_EXTRA_LEN_OFS = 28,
  // End of central directory offsets
  sed_mz_ZIP_ECDH_SIG_OFS = 0, sed_mz_ZIP_ECDH_NUM_THIS_DISK_OFS = 4, sed_mz_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6, sed_mz_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8,
  sed_mz_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10, sed_mz_ZIP_ECDH_CDIR_SIZE_OFS = 12, sed_mz_ZIP_ECDH_CDIR_OFS_OFS = 16, sed_mz_ZIP_ECDH_COMMENT_SIZE_OFS = 20,
};

typedef struct
{
  void *m_p;
  size_t m_size, m_capacity;
  sed_mz_uint m_element_size;
} sed_mz_zip_array;

struct sed_mz_zip_internal_state_tag
{
  sed_mz_zip_array m_central_dir;
  sed_mz_zip_array m_central_dir_offsets;
  sed_mz_zip_array m_sorted_central_dir_offsets;
  sed_mz_FILE *m_pFile;
  void *m_pMem;
  size_t m_mem_size;
  size_t m_mem_capacity;
};

#define sed_mz_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) (array_ptr)->m_element_size = element_size
#define sed_mz_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) ((element_type *)((array_ptr)->m_p))[index]

static sed_mz_FORCEINLINE void sed_mz_zip_array_clear(sed_mz_zip_archive *pZip, sed_mz_zip_array *pArray)
{
  pZip->m_pFree(pZip->m_pAlloc_opaque, pArray->m_p);
  memset(pArray, 0, sizeof(sed_mz_zip_array));
}

static sed_mz_bool sed_mz_zip_array_ensure_capacity(sed_mz_zip_archive *pZip, sed_mz_zip_array *pArray, size_t min_new_capacity, sed_mz_uint growing)
{
  void *pNew_p; size_t new_capacity = min_new_capacity; sed_mz_ASSERT(pArray->m_element_size); if (pArray->m_capacity >= min_new_capacity) return sed_mz_TRUE;
  if (growing) { new_capacity = sed_mz_MAX(1, pArray->m_capacity); while (new_capacity < min_new_capacity) new_capacity *= 2; }
  if (NULL == (pNew_p = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pArray->m_p, pArray->m_element_size, new_capacity))) return sed_mz_FALSE;
  pArray->m_p = pNew_p; pArray->m_capacity = new_capacity;
  return sed_mz_TRUE;
}

static sed_mz_FORCEINLINE sed_mz_bool sed_mz_zip_array_reserve(sed_mz_zip_archive *pZip, sed_mz_zip_array *pArray, size_t new_capacity, sed_mz_uint growing)
{
  if (new_capacity > pArray->m_capacity) { if (!sed_mz_zip_array_ensure_capacity(pZip, pArray, new_capacity, growing)) return sed_mz_FALSE; }
  return sed_mz_TRUE;
}

static sed_mz_FORCEINLINE sed_mz_bool sed_mz_zip_array_resize(sed_mz_zip_archive *pZip, sed_mz_zip_array *pArray, size_t new_size, sed_mz_uint growing)
{
  if (new_size > pArray->m_capacity) { if (!sed_mz_zip_array_ensure_capacity(pZip, pArray, new_size, growing)) return sed_mz_FALSE; }
  pArray->m_size = new_size;
  return sed_mz_TRUE;
}

static sed_mz_FORCEINLINE sed_mz_bool sed_mz_zip_array_ensure_room(sed_mz_zip_archive *pZip, sed_mz_zip_array *pArray, size_t n)
{
  return sed_mz_zip_array_reserve(pZip, pArray, pArray->m_size + n, sed_mz_TRUE);
}

static sed_mz_FORCEINLINE sed_mz_bool sed_mz_zip_array_push_back(sed_mz_zip_archive *pZip, sed_mz_zip_array *pArray, const void *pElements, size_t n)
{
  size_t orig_size = pArray->m_size; if (!sed_mz_zip_array_resize(pZip, pArray, orig_size + n, sed_mz_TRUE)) return sed_mz_FALSE;
  memcpy((sed_mz_uint8*)pArray->m_p + orig_size * pArray->m_element_size, pElements, n * pArray->m_element_size);
  return sed_mz_TRUE;
}

#ifndef MINIZ_NO_TIME
static time_t sed_mz_zip_dos_to_time_t(int dos_time, int dos_date)
{
  struct tm tm;
  memset(&tm, 0, sizeof(tm)); tm.tm_isdst = -1;
  tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900; tm.tm_mon = ((dos_date >> 5) & 15) - 1; tm.tm_mday = dos_date & 31;
  tm.tm_hour = (dos_time >> 11) & 31; tm.tm_min = (dos_time >> 5) & 63; tm.tm_sec = (dos_time << 1) & 62;
  return mktime(&tm);
}

static void sed_mz_zip_time_to_dos_time(time_t time, sed_mz_uint16 *pDOS_time, sed_mz_uint16 *pDOS_date)
{
#ifdef _MSC_VER
  struct tm tm_struct;
  struct tm *tm = &tm_struct;
  errno_t err = localtime_s(tm, &time);
  if (err)
  {
    *pDOS_date = 0; *pDOS_time = 0;
    return;
  }
#else
  struct tm *tm = localtime(&time);
#endif
  *pDOS_time = (sed_mz_uint16)(((tm->tm_hour) << 11) + ((tm->tm_min) << 5) + ((tm->tm_sec) >> 1));
  *pDOS_date = (sed_mz_uint16)(((tm->tm_year + 1900 - 1980) << 9) + ((tm->tm_mon + 1) << 5) + tm->tm_mday);
}
#endif

#ifndef MINIZ_NO_STDIO
static sed_mz_bool sed_mz_zip_get_file_modified_time(const char *pFilename, sed_mz_uint16 *pDOS_time, sed_mz_uint16 *pDOS_date)
{
#ifdef MINIZ_NO_TIME
  (void)pFilename; *pDOS_date = *pDOS_time = 0;
#else
  struct sed_mz_FILE_STAT_STRUCT file_stat;
  // On Linux with x86 glibc, this call will fail on large files (>= 0x80000000 bytes) unless you compiled with _LARGEFILE64_SOURCE. Argh.
  if (sed_mz_FILE_STAT(pFilename, &file_stat) != 0)
    return sed_mz_FALSE;
  sed_mz_zip_time_to_dos_time(file_stat.st_mtime, pDOS_time, pDOS_date);
#endif // #ifdef MINIZ_NO_TIME
  return sed_mz_TRUE;
}

#ifndef MINIZ_NO_TIME
static sed_mz_bool sed_mz_zip_set_file_times(const char *pFilename, time_t access_time, time_t modified_time)
{
  struct utimbuf t; t.actime = access_time; t.modtime = modified_time;
  return !utime(pFilename, &t);
}
#endif // #ifndef MINIZ_NO_TIME
#endif // #ifndef MINIZ_NO_STDIO

static sed_mz_bool sed_mz_zip_reader_init_internal(sed_mz_zip_archive *pZip, sed_mz_uint32 flags)
{
  (void)flags;
  if ((!pZip) || (pZip->m_pState) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_INVALID))
    return sed_mz_FALSE;

  if (!pZip->m_pAlloc) pZip->m_pAlloc = def_alloc_func;
  if (!pZip->m_pFree) pZip->m_pFree = def_free_func;
  if (!pZip->m_pRealloc) pZip->m_pRealloc = def_realloc_func;

  pZip->m_zip_mode = sed_mz_ZIP_MODE_READING;
  pZip->m_archive_size = 0;
  pZip->m_central_directory_file_ofs = 0;
  pZip->m_total_files = 0;

  if (NULL == (pZip->m_pState = (sed_mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(sed_mz_zip_internal_state))))
    return sed_mz_FALSE;
  memset(pZip->m_pState, 0, sizeof(sed_mz_zip_internal_state));
  sed_mz_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(sed_mz_uint8));
  sed_mz_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(sed_mz_uint32));
  sed_mz_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(sed_mz_uint32));
  return sed_mz_TRUE;
}

static sed_mz_FORCEINLINE sed_mz_bool sed_mz_zip_reader_filename_less(const sed_mz_zip_array *pCentral_dir_array, const sed_mz_zip_array *pCentral_dir_offsets, sed_mz_uint l_index, sed_mz_uint r_index)
{
  const sed_mz_uint8 *pL = &sed_mz_ZIP_ARRAY_ELEMENT(pCentral_dir_array, sed_mz_uint8, sed_mz_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, sed_mz_uint32, l_index)), *pE;
  const sed_mz_uint8 *pR = &sed_mz_ZIP_ARRAY_ELEMENT(pCentral_dir_array, sed_mz_uint8, sed_mz_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, sed_mz_uint32, r_index));
  sed_mz_uint l_len = sed_mz_READ_LE16(pL + sed_mz_ZIP_CDH_FILENAME_LEN_OFS), r_len = sed_mz_READ_LE16(pR + sed_mz_ZIP_CDH_FILENAME_LEN_OFS);
  sed_mz_uint8 l = 0, r = 0;
  pL += sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE; pR += sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE;
  pE = pL + sed_mz_MIN(l_len, r_len);
  while (pL < pE)
  {
    if ((l = sed_mz_TOLOWER(*pL)) != (r = sed_mz_TOLOWER(*pR)))
      break;
    pL++; pR++;
  }
  return (pL == pE) ? (l_len < r_len) : (l < r);
}

#define sed_mz_SWAP_UINT32(a, b) do { sed_mz_uint32 t = a; a = b; b = t; } sed_mz_MACRO_END

// Heap sort of lowercased filenames, used to help accelerate plain central directory searches by sed_mz_zip_reader_locate_file(). (Could also use qsort(), but it could allocate memory.)
static void sed_mz_zip_reader_sort_central_dir_offsets_by_filename(sed_mz_zip_archive *pZip)
{
  sed_mz_zip_internal_state *pState = pZip->m_pState;
  const sed_mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
  const sed_mz_zip_array *pCentral_dir = &pState->m_central_dir;
  sed_mz_uint32 *pIndices = &sed_mz_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, sed_mz_uint32, 0);
  const int size = pZip->m_total_files;
  int start = (size - 2) >> 1, end;
  while (start >= 0)
  {
    int child, root = start;
    for ( ; ; )
    {
      if ((child = (root << 1) + 1) >= size)
        break;
      child += (((child + 1) < size) && (sed_mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1])));
      if (!sed_mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
        break;
      sed_mz_SWAP_UINT32(pIndices[root], pIndices[child]); root = child;
    }
    start--;
  }

  end = size - 1;
  while (end > 0)
  {
    int child, root = 0;
    sed_mz_SWAP_UINT32(pIndices[end], pIndices[0]);
    for ( ; ; )
    {
      if ((child = (root << 1) + 1) >= end)
        break;
      child += (((child + 1) < end) && sed_mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1]));
      if (!sed_mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
        break;
      sed_mz_SWAP_UINT32(pIndices[root], pIndices[child]); root = child;
    }
    end--;
  }
}

static sed_mz_bool sed_mz_zip_reader_read_central_dir(sed_mz_zip_archive *pZip, sed_mz_uint32 flags)
{
  sed_mz_uint cdir_size, num_this_disk, cdir_disk_index;
  sed_mz_uint64 cdir_ofs;
  sed_mz_int64 cur_file_ofs;
  const sed_mz_uint8 *p;
  sed_mz_uint32 buf_u32[4096 / sizeof(sed_mz_uint32)]; sed_mz_uint8 *pBuf = (sed_mz_uint8 *)buf_u32;
  sed_mz_bool sort_central_dir = ((flags & sed_mz_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0);
  // Basic sanity checks - reject files which are too small, and check the first 4 bytes of the file to make sure a local header is there.
  if (pZip->m_archive_size < sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
    return sed_mz_FALSE;
  // Find the end of central directory record by scanning the file from the end towards the beginning.
  cur_file_ofs = sed_mz_MAX((sed_mz_int64)pZip->m_archive_size - (sed_mz_int64)sizeof(buf_u32), 0);
  for ( ; ; )
  {
    int i, n = (int)sed_mz_MIN(sizeof(buf_u32), pZip->m_archive_size - cur_file_ofs);
    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, n) != (sed_mz_uint)n)
      return sed_mz_FALSE;
    for (i = n - 4; i >= 0; --i)
      if (sed_mz_READ_LE32(pBuf + i) == sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG)
        break;
    if (i >= 0)
    {
      cur_file_ofs += i;
      break;
    }
    if ((!cur_file_ofs) || ((pZip->m_archive_size - cur_file_ofs) >= (0xFFFF + sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)))
      return sed_mz_FALSE;
    cur_file_ofs = sed_mz_MAX(cur_file_ofs - (sizeof(buf_u32) - 3), 0);
  }
  // Read and verify the end of central directory record.
  if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
    return sed_mz_FALSE;
  if ((sed_mz_READ_LE32(pBuf + sed_mz_ZIP_ECDH_SIG_OFS) != sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG) ||
      ((pZip->m_total_files = sed_mz_READ_LE16(pBuf + sed_mz_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS)) != sed_mz_READ_LE16(pBuf + sed_mz_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS)))
    return sed_mz_FALSE;

  num_this_disk = sed_mz_READ_LE16(pBuf + sed_mz_ZIP_ECDH_NUM_THIS_DISK_OFS);
  cdir_disk_index = sed_mz_READ_LE16(pBuf + sed_mz_ZIP_ECDH_NUM_DISK_CDIR_OFS);
  if (((num_this_disk | cdir_disk_index) != 0) && ((num_this_disk != 1) || (cdir_disk_index != 1)))
    return sed_mz_FALSE;

  if ((cdir_size = sed_mz_READ_LE32(pBuf + sed_mz_ZIP_ECDH_CDIR_SIZE_OFS)) < pZip->m_total_files * sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE)
    return sed_mz_FALSE;

  cdir_ofs = sed_mz_READ_LE32(pBuf + sed_mz_ZIP_ECDH_CDIR_OFS_OFS);
  if ((cdir_ofs + (sed_mz_uint64)cdir_size) > pZip->m_archive_size)
    return sed_mz_FALSE;

  pZip->m_central_directory_file_ofs = cdir_ofs;

  if (pZip->m_total_files)
  {
     sed_mz_uint i, n;

    // Read the entire central directory into a heap block, and allocate another heap block to hold the unsorted central dir file record offsets, and another to hold the sorted indices.
    if ((!sed_mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir, cdir_size, sed_mz_FALSE)) ||
        (!sed_mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir_offsets, pZip->m_total_files, sed_mz_FALSE)))
      return sed_mz_FALSE;

    if (sort_central_dir)
    {
      if (!sed_mz_zip_array_resize(pZip, &pZip->m_pState->m_sorted_central_dir_offsets, pZip->m_total_files, sed_mz_FALSE))
        return sed_mz_FALSE;
    }

    if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs, pZip->m_pState->m_central_dir.m_p, cdir_size) != cdir_size)
      return sed_mz_FALSE;

    // Now create an index into the central directory file records, do some basic sanity checking on each record, and check for zip64 entries (which are not yet supported).
    p = (const sed_mz_uint8 *)pZip->m_pState->m_central_dir.m_p;
    for (n = cdir_size, i = 0; i < pZip->m_total_files; ++i)
    {
      sed_mz_uint total_header_size, comp_size, decomp_size, disk_index;
      if ((n < sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE) || (sed_mz_READ_LE32(p) != sed_mz_ZIP_CENTRAL_DIR_HEADER_SIG))
        return sed_mz_FALSE;
      sed_mz_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, sed_mz_uint32, i) = (sed_mz_uint32)(p - (const sed_mz_uint8 *)pZip->m_pState->m_central_dir.m_p);
      if (sort_central_dir)
        sed_mz_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_sorted_central_dir_offsets, sed_mz_uint32, i) = i;
      comp_size = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_COMPRESSED_SIZE_OFS);
      decomp_size = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
      if (((!sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_METHOD_OFS)) && (decomp_size != comp_size)) || (decomp_size && !comp_size) || (decomp_size == 0xFFFFFFFF) || (comp_size == 0xFFFFFFFF))
        return sed_mz_FALSE;
      disk_index = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_DISK_START_OFS);
      if ((disk_index != num_this_disk) && (disk_index != 1))
        return sed_mz_FALSE;
      if (((sed_mz_uint64)sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_LOCAL_HEADER_OFS) + sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size)
        return sed_mz_FALSE;
      if ((total_header_size = sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_FILENAME_LEN_OFS) + sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_EXTRA_LEN_OFS) + sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_COMMENT_LEN_OFS)) > n)
        return sed_mz_FALSE;
      n -= total_header_size; p += total_header_size;
    }
  }

  if (sort_central_dir)
    sed_mz_zip_reader_sort_central_dir_offsets_by_filename(pZip);

  return sed_mz_TRUE;
}

sed_mz_bool sed_mz_zip_reader_init(sed_mz_zip_archive *pZip, sed_mz_uint64 size, sed_mz_uint32 flags)
{
  if ((!pZip) || (!pZip->m_pRead))
    return sed_mz_FALSE;
  if (!sed_mz_zip_reader_init_internal(pZip, flags))
    return sed_mz_FALSE;
  pZip->m_archive_size = size;
  if (!sed_mz_zip_reader_read_central_dir(pZip, flags))
  {
    sed_mz_zip_reader_end(pZip);
    return sed_mz_FALSE;
  }
  return sed_mz_TRUE;
}

static size_t sed_mz_zip_mem_read_func(void *pOpaque, sed_mz_uint64 file_ofs, void *pBuf, size_t n)
{
  sed_mz_zip_archive *pZip = (sed_mz_zip_archive *)pOpaque;
  size_t s = (file_ofs >= pZip->m_archive_size) ? 0 : (size_t)sed_mz_MIN(pZip->m_archive_size - file_ofs, n);
  memcpy(pBuf, (const sed_mz_uint8 *)pZip->m_pState->m_pMem + file_ofs, s);
  return s;
}

sed_mz_bool sed_mz_zip_reader_init_mem(sed_mz_zip_archive *pZip, const void *pMem, size_t size, sed_mz_uint32 flags)
{
  if (!sed_mz_zip_reader_init_internal(pZip, flags))
    return sed_mz_FALSE;
  pZip->m_archive_size = size;
  pZip->m_pRead = sed_mz_zip_mem_read_func;
  pZip->m_pIO_opaque = pZip;
#ifdef __cplusplus
  pZip->m_pState->m_pMem = const_cast<void *>(pMem);
#else
  pZip->m_pState->m_pMem = (void *)pMem;
#endif
  pZip->m_pState->m_mem_size = size;
  if (!sed_mz_zip_reader_read_central_dir(pZip, flags))
  {
    sed_mz_zip_reader_end(pZip);
    return sed_mz_FALSE;
  }
  return sed_mz_TRUE;
}

#ifndef MINIZ_NO_STDIO
static size_t sed_mz_zip_file_read_func(void *pOpaque, sed_mz_uint64 file_ofs, void *pBuf, size_t n)
{
  sed_mz_zip_archive *pZip = (sed_mz_zip_archive *)pOpaque;
  sed_mz_int64 cur_ofs = sed_mz_FTELL64(pZip->m_pState->m_pFile);
  if (((sed_mz_int64)file_ofs < 0) || (((cur_ofs != (sed_mz_int64)file_ofs)) && (sed_mz_FSEEK64(pZip->m_pState->m_pFile, (sed_mz_int64)file_ofs, SEEK_SET))))
    return 0;
  return sed_mz_FREAD(pBuf, 1, n, pZip->m_pState->m_pFile);
}

sed_mz_bool sed_mz_zip_reader_init_file(sed_mz_zip_archive *pZip, const char *pFilename, sed_mz_uint32 flags)
{
  sed_mz_uint64 file_size;
  sed_mz_FILE *pFile = sed_mz_FOPEN(pFilename, "rb");
  if (!pFile)
    return sed_mz_FALSE;
  if (sed_mz_FSEEK64(pFile, 0, SEEK_END))
  {
    sed_mz_FCLOSE(pFile);
    return sed_mz_FALSE;
  }
  file_size = sed_mz_FTELL64(pFile);
  if (!sed_mz_zip_reader_init_internal(pZip, flags))
  {
    sed_mz_FCLOSE(pFile);
    return sed_mz_FALSE;
  }
  pZip->m_pRead = sed_mz_zip_file_read_func;
  pZip->m_pIO_opaque = pZip;
  pZip->m_pState->m_pFile = pFile;
  pZip->m_archive_size = file_size;
  if (!sed_mz_zip_reader_read_central_dir(pZip, flags))
  {
    sed_mz_zip_reader_end(pZip);
    return sed_mz_FALSE;
  }
  return sed_mz_TRUE;
}
#endif // #ifndef MINIZ_NO_STDIO

sed_mz_uint sed_mz_zip_reader_get_num_files(sed_mz_zip_archive *pZip)
{
  return pZip ? pZip->m_total_files : 0;
}

static sed_mz_FORCEINLINE const sed_mz_uint8 *sed_mz_zip_reader_get_cdh(sed_mz_zip_archive *pZip, sed_mz_uint file_index)
{
  if ((!pZip) || (!pZip->m_pState) || (file_index >= pZip->m_total_files) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_READING))
    return NULL;
  return &sed_mz_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, sed_mz_uint8, sed_mz_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, sed_mz_uint32, file_index));
}

sed_mz_bool sed_mz_zip_reader_is_file_encrypted(sed_mz_zip_archive *pZip, sed_mz_uint file_index)
{
  sed_mz_uint m_bit_flag;
  const sed_mz_uint8 *p = sed_mz_zip_reader_get_cdh(pZip, file_index);
  if (!p)
    return sed_mz_FALSE;
  m_bit_flag = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_BIT_FLAG_OFS);
  return (m_bit_flag & 1);
}

sed_mz_bool sed_mz_zip_reader_is_file_a_directory(sed_mz_zip_archive *pZip, sed_mz_uint file_index)
{
  sed_mz_uint filename_len, external_attr;
  const sed_mz_uint8 *p = sed_mz_zip_reader_get_cdh(pZip, file_index);
  if (!p)
    return sed_mz_FALSE;

  // First see if the filename ends with a '/' character.
  filename_len = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_FILENAME_LEN_OFS);
  if (filename_len)
  {
    if (*(p + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_len - 1) == '/')
      return sed_mz_TRUE;
  }

  // Bugfix: This code was also checking if the internal attribute was non-zero, which wasn't correct.
  // Most/all zip writers (hopefully) set DOS file/directory attributes in the low 16-bits, so check for the DOS directory flag and ignore the source OS ID in the created by field.
  // FIXME: Remove this check? Is it necessary - we already check the filename.
  external_attr = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_EXTERNAL_ATTR_OFS);
  if ((external_attr & 0x10) != 0)
    return sed_mz_TRUE;

  return sed_mz_FALSE;
}

sed_mz_bool sed_mz_zip_reader_file_stat(sed_mz_zip_archive *pZip, sed_mz_uint file_index, sed_mz_zip_archive_file_stat *pStat)
{
  sed_mz_uint n;
  const sed_mz_uint8 *p = sed_mz_zip_reader_get_cdh(pZip, file_index);
  if ((!p) || (!pStat))
    return sed_mz_FALSE;

  // Unpack the central directory record.
  pStat->m_file_index = file_index;
  pStat->m_central_dir_ofs = sed_mz_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, sed_mz_uint32, file_index);
  pStat->m_version_made_by = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_VERSION_MADE_BY_OFS);
  pStat->m_version_needed = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_VERSION_NEEDED_OFS);
  pStat->m_bit_flag = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_BIT_FLAG_OFS);
  pStat->m_method = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_METHOD_OFS);
#ifndef MINIZ_NO_TIME
  pStat->m_time = sed_mz_zip_dos_to_time_t(sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_FILE_TIME_OFS), sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_FILE_DATE_OFS));
#endif
  pStat->m_crc32 = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_CRC32_OFS);
  pStat->m_comp_size = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_COMPRESSED_SIZE_OFS);
  pStat->m_uncomp_size = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
  pStat->m_internal_attr = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_INTERNAL_ATTR_OFS);
  pStat->m_external_attr = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_EXTERNAL_ATTR_OFS);
  pStat->m_local_header_ofs = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_LOCAL_HEADER_OFS);

  // Copy as much of the filename and comment as possible.
  n = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_FILENAME_LEN_OFS); n = sed_mz_MIN(n, sed_mz_ZIP_MAX_ARCHIVE_FILENAME_SIZE - 1);
  memcpy(pStat->m_filename, p + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE, n); pStat->m_filename[n] = '\0';

  n = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_COMMENT_LEN_OFS); n = sed_mz_MIN(n, sed_mz_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE - 1);
  pStat->m_comment_size = n;
  memcpy(pStat->m_comment, p + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_FILENAME_LEN_OFS) + sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_EXTRA_LEN_OFS), n); pStat->m_comment[n] = '\0';

  return sed_mz_TRUE;
}

sed_mz_uint sed_mz_zip_reader_get_filename(sed_mz_zip_archive *pZip, sed_mz_uint file_index, char *pFilename, sed_mz_uint filename_buf_size)
{
  sed_mz_uint n;
  const sed_mz_uint8 *p = sed_mz_zip_reader_get_cdh(pZip, file_index);
  if (!p) { if (filename_buf_size) pFilename[0] = '\0'; return 0; }
  n = sed_mz_READ_LE16(p + sed_mz_ZIP_CDH_FILENAME_LEN_OFS);
  if (filename_buf_size)
  {
    n = sed_mz_MIN(n, filename_buf_size - 1);
    memcpy(pFilename, p + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
    pFilename[n] = '\0';
  }
  return n + 1;
}

static sed_mz_FORCEINLINE sed_mz_bool sed_mz_zip_reader_string_equal(const char *pA, const char *pB, sed_mz_uint len, sed_mz_uint flags)
{
  sed_mz_uint i;
  if (flags & sed_mz_ZIP_FLAG_CASE_SENSITIVE)
    return 0 == memcmp(pA, pB, len);
  for (i = 0; i < len; ++i)
    if (sed_mz_TOLOWER(pA[i]) != sed_mz_TOLOWER(pB[i]))
      return sed_mz_FALSE;
  return sed_mz_TRUE;
}

static sed_mz_FORCEINLINE int sed_mz_zip_reader_filename_compare(const sed_mz_zip_array *pCentral_dir_array, const sed_mz_zip_array *pCentral_dir_offsets, sed_mz_uint l_index, const char *pR, sed_mz_uint r_len)
{
  const sed_mz_uint8 *pL = &sed_mz_ZIP_ARRAY_ELEMENT(pCentral_dir_array, sed_mz_uint8, sed_mz_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, sed_mz_uint32, l_index)), *pE;
  sed_mz_uint l_len = sed_mz_READ_LE16(pL + sed_mz_ZIP_CDH_FILENAME_LEN_OFS);
  sed_mz_uint8 l = 0, r = 0;
  pL += sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE;
  pE = pL + sed_mz_MIN(l_len, r_len);
  while (pL < pE)
  {
    if ((l = sed_mz_TOLOWER(*pL)) != (r = sed_mz_TOLOWER(*pR)))
      break;
    pL++; pR++;
  }
  return (pL == pE) ? (int)(l_len - r_len) : (l - r);
}

static int sed_mz_zip_reader_locate_file_binary_search(sed_mz_zip_archive *pZip, const char *pFilename)
{
  sed_mz_zip_internal_state *pState = pZip->m_pState;
  const sed_mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
  const sed_mz_zip_array *pCentral_dir = &pState->m_central_dir;
  sed_mz_uint32 *pIndices = &sed_mz_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, sed_mz_uint32, 0);
  const int size = pZip->m_total_files;
  const sed_mz_uint filename_len = (sed_mz_uint)strlen(pFilename);
  int l = 0, h = size - 1;
  while (l <= h)
  {
    int m = (l + h) >> 1, file_index = pIndices[m], comp = sed_mz_zip_reader_filename_compare(pCentral_dir, pCentral_dir_offsets, file_index, pFilename, filename_len);
    if (!comp)
      return file_index;
    else if (comp < 0)
      l = m + 1;
    else
      h = m - 1;
  }
  return -1;
}

int sed_mz_zip_reader_locate_file(sed_mz_zip_archive *pZip, const char *pName, const char *pComment, sed_mz_uint flags)
{
  sed_mz_uint file_index; size_t name_len, comment_len;
  if ((!pZip) || (!pZip->m_pState) || (!pName) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_READING))
    return -1;
  if (((flags & (sed_mz_ZIP_FLAG_IGNORE_PATH | sed_mz_ZIP_FLAG_CASE_SENSITIVE)) == 0) && (!pComment) && (pZip->m_pState->m_sorted_central_dir_offsets.m_size))
    return sed_mz_zip_reader_locate_file_binary_search(pZip, pName);
  name_len = strlen(pName); if (name_len > 0xFFFF) return -1;
  comment_len = pComment ? strlen(pComment) : 0; if (comment_len > 0xFFFF) return -1;
  for (file_index = 0; file_index < pZip->m_total_files; file_index++)
  {
    const sed_mz_uint8 *pHeader = &sed_mz_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, sed_mz_uint8, sed_mz_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, sed_mz_uint32, file_index));
    sed_mz_uint filename_len = sed_mz_READ_LE16(pHeader + sed_mz_ZIP_CDH_FILENAME_LEN_OFS);
    const char *pFilename = (const char *)pHeader + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE;
    if (filename_len < name_len)
      continue;
    if (comment_len)
    {
      sed_mz_uint file_extra_len = sed_mz_READ_LE16(pHeader + sed_mz_ZIP_CDH_EXTRA_LEN_OFS), file_comment_len = sed_mz_READ_LE16(pHeader + sed_mz_ZIP_CDH_COMMENT_LEN_OFS);
      const char *pFile_comment = pFilename + filename_len + file_extra_len;
      if ((file_comment_len != comment_len) || (!sed_mz_zip_reader_string_equal(pComment, pFile_comment, file_comment_len, flags)))
        continue;
    }
    if ((flags & sed_mz_ZIP_FLAG_IGNORE_PATH) && (filename_len))
    {
      int ofs = filename_len - 1;
      do
      {
        if ((pFilename[ofs] == '/') || (pFilename[ofs] == '\\') || (pFilename[ofs] == ':'))
          break;
      } while (--ofs >= 0);
      ofs++;
      pFilename += ofs; filename_len -= ofs;
    }
    if ((filename_len == name_len) && (sed_mz_zip_reader_string_equal(pName, pFilename, filename_len, flags)))
      return file_index;
  }
  return -1;
}

sed_mz_bool sed_mz_zip_reader_extract_to_mem_no_alloc(sed_mz_zip_archive *pZip, sed_mz_uint file_index, void *pBuf, size_t buf_size, sed_mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size)
{
  int status = sed_tinfl_STATUS_DONE;
  sed_mz_uint64 needed_size, cur_file_ofs, comp_remaining, out_buf_ofs = 0, read_buf_size, read_buf_ofs = 0, read_buf_avail;
  sed_mz_zip_archive_file_stat file_stat;
  void *pRead_buf;
  sed_mz_uint32 local_header_u32[(sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(sed_mz_uint32) - 1) / sizeof(sed_mz_uint32)]; sed_mz_uint8 *pLocal_header = (sed_mz_uint8 *)local_header_u32;
  sed_tinfl_decompressor inflator;

  if ((buf_size) && (!pBuf))
    return sed_mz_FALSE;

  if (!sed_mz_zip_reader_file_stat(pZip, file_index, &file_stat))
    return sed_mz_FALSE;

  // Empty file, or a directory (but not always a directory - I've seen odd zips with directories that have compressed data which inflates to 0 bytes)
  if (!file_stat.m_comp_size)
    return sed_mz_TRUE;

  // Entry is a subdirectory (I've seen old zips with dir entries which have compressed deflate data which inflates to 0 bytes, but these entries claim to uncompress to 512 bytes in the headers).
  // I'm torn how to handle this case - should it fail instead?
  if (sed_mz_zip_reader_is_file_a_directory(pZip, file_index))
    return sed_mz_TRUE;

  // Encryption and patch files are not supported.
  if (file_stat.m_bit_flag & (1 | 32))
    return sed_mz_FALSE;

  // This function only supports stored and deflate.
  if ((!(flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != sed_mz_DEFLATED))
    return sed_mz_FALSE;

  // Ensure supplied output buffer is large enough.
  needed_size = (flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size : file_stat.m_uncomp_size;
  if (buf_size < needed_size)
    return sed_mz_FALSE;

  // Read and parse the local directory entry.
  cur_file_ofs = file_stat.m_local_header_ofs;
  if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE) != sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE)
    return sed_mz_FALSE;
  if (sed_mz_READ_LE32(pLocal_header) != sed_mz_ZIP_LOCAL_DIR_HEADER_SIG)
    return sed_mz_FALSE;

  cur_file_ofs += sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sed_mz_READ_LE16(pLocal_header + sed_mz_ZIP_LDH_FILENAME_LEN_OFS) + sed_mz_READ_LE16(pLocal_header + sed_mz_ZIP_LDH_EXTRA_LEN_OFS);
  if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
    return sed_mz_FALSE;

  if ((flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
  {
    // The file is stored or the caller has requested the compressed data.
    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, (size_t)needed_size) != needed_size)
      return sed_mz_FALSE;
    return ((flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA) != 0) || (sed_mz_crc32(sed_mz_CRC32_INIT, (const sed_mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) == file_stat.m_crc32);
  }

  // Decompress the file either directly from memory or from a file input buffer.
  sed_tinfl_init(&inflator);

  if (pZip->m_pState->m_pMem)
  {
    // Read directly from the archive in memory.
    pRead_buf = (sed_mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
    read_buf_size = read_buf_avail = file_stat.m_comp_size;
    comp_remaining = 0;
  }
  else if (pUser_read_buf)
  {
    // Use a user provided read buffer.
    if (!user_read_buf_size)
      return sed_mz_FALSE;
    pRead_buf = (sed_mz_uint8 *)pUser_read_buf;
    read_buf_size = user_read_buf_size;
    read_buf_avail = 0;
    comp_remaining = file_stat.m_comp_size;
  }
  else
  {
    // Temporarily allocate a read buffer.
    read_buf_size = sed_mz_MIN(file_stat.m_comp_size, sed_mz_ZIP_MAX_IO_BUF_SIZE);
#ifdef _MSC_VER
    if (((0, sizeof(size_t) == sizeof(sed_mz_uint32))) && (read_buf_size > 0x7FFFFFFF))
#else
    if (((sizeof(size_t) == sizeof(sed_mz_uint32))) && (read_buf_size > 0x7FFFFFFF))
#endif
      return sed_mz_FALSE;
    if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
      return sed_mz_FALSE;
    read_buf_avail = 0;
    comp_remaining = file_stat.m_comp_size;
  }

  do
  {
    size_t in_buf_size, out_buf_size = (size_t)(file_stat.m_uncomp_size - out_buf_ofs);
    if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
    {
      read_buf_avail = sed_mz_MIN(read_buf_size, comp_remaining);
      if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
      {
        status = sed_tinfl_STATUS_FAILED;
        break;
      }
      cur_file_ofs += read_buf_avail;
      comp_remaining -= read_buf_avail;
      read_buf_ofs = 0;
    }
    in_buf_size = (size_t)read_buf_avail;
    status = sed_tinfl_decompress(&inflator, (sed_mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (sed_mz_uint8 *)pBuf, (sed_mz_uint8 *)pBuf + out_buf_ofs, &out_buf_size, sed_tinfl_FLAG_USING_NON_WRAPPING_OUTPUT_BUF | (comp_remaining ? sed_tinfl_FLAG_HAS_MORE_INPUT : 0));
    read_buf_avail -= in_buf_size;
    read_buf_ofs += in_buf_size;
    out_buf_ofs += out_buf_size;
  } while (status == sed_tinfl_STATUS_NEEDS_MORE_INPUT);

  if (status == sed_tinfl_STATUS_DONE)
  {
    // Make sure the entire file was decompressed, and check its CRC.
    if ((out_buf_ofs != file_stat.m_uncomp_size) || (sed_mz_crc32(sed_mz_CRC32_INIT, (const sed_mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32))
      status = sed_tinfl_STATUS_FAILED;
  }

  if ((!pZip->m_pState->m_pMem) && (!pUser_read_buf))
    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);

  return status == sed_tinfl_STATUS_DONE;
}

sed_mz_bool sed_mz_zip_reader_extract_file_to_mem_no_alloc(sed_mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, sed_mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size)
{
  int file_index = sed_mz_zip_reader_locate_file(pZip, pFilename, NULL, flags);
  if (file_index < 0)
    return sed_mz_FALSE;
  return sed_mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, flags, pUser_read_buf, user_read_buf_size);
}

sed_mz_bool sed_mz_zip_reader_extract_to_mem(sed_mz_zip_archive *pZip, sed_mz_uint file_index, void *pBuf, size_t buf_size, sed_mz_uint flags)
{
  return sed_mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, flags, NULL, 0);
}

sed_mz_bool sed_mz_zip_reader_extract_file_to_mem(sed_mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, sed_mz_uint flags)
{
  return sed_mz_zip_reader_extract_file_to_mem_no_alloc(pZip, pFilename, pBuf, buf_size, flags, NULL, 0);
}

void *sed_mz_zip_reader_extract_to_heap(sed_mz_zip_archive *pZip, sed_mz_uint file_index, size_t *pSize, sed_mz_uint flags)
{
  sed_mz_uint64 comp_size, uncomp_size, alloc_size;
  const sed_mz_uint8 *p = sed_mz_zip_reader_get_cdh(pZip, file_index);
  void *pBuf;

  if (pSize)
    *pSize = 0;
  if (!p)
    return NULL;

  comp_size = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_COMPRESSED_SIZE_OFS);
  uncomp_size = sed_mz_READ_LE32(p + sed_mz_ZIP_CDH_DECOMPRESSED_SIZE_OFS);

  alloc_size = (flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA) ? comp_size : uncomp_size;
#ifdef _MSC_VER
  if (((0, sizeof(size_t) == sizeof(sed_mz_uint32))) && (alloc_size > 0x7FFFFFFF))
#else
  if (((sizeof(size_t) == sizeof(sed_mz_uint32))) && (alloc_size > 0x7FFFFFFF))
#endif
    return NULL;
  if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)alloc_size)))
    return NULL;

  if (!sed_mz_zip_reader_extract_to_mem(pZip, file_index, pBuf, (size_t)alloc_size, flags))
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
    return NULL;
  }

  if (pSize) *pSize = (size_t)alloc_size;
  return pBuf;
}

void *sed_mz_zip_reader_extract_file_to_heap(sed_mz_zip_archive *pZip, const char *pFilename, size_t *pSize, sed_mz_uint flags)
{
  int file_index = sed_mz_zip_reader_locate_file(pZip, pFilename, NULL, flags);
  if (file_index < 0)
  {
    if (pSize) *pSize = 0;
    return sed_mz_FALSE;
  }
  return sed_mz_zip_reader_extract_to_heap(pZip, file_index, pSize, flags);
}

sed_mz_bool sed_mz_zip_reader_extract_to_callback(sed_mz_zip_archive *pZip, sed_mz_uint file_index, sed_mz_file_write_func pCallback, void *pOpaque, sed_mz_uint flags)
{
  int status = sed_tinfl_STATUS_DONE; sed_mz_uint file_crc32 = sed_mz_CRC32_INIT;
  sed_mz_uint64 read_buf_size, read_buf_ofs = 0, read_buf_avail, comp_remaining, out_buf_ofs = 0, cur_file_ofs;
  sed_mz_zip_archive_file_stat file_stat;
  void *pRead_buf = NULL; void *pWrite_buf = NULL;
  sed_mz_uint32 local_header_u32[(sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(sed_mz_uint32) - 1) / sizeof(sed_mz_uint32)]; sed_mz_uint8 *pLocal_header = (sed_mz_uint8 *)local_header_u32;

  if (!sed_mz_zip_reader_file_stat(pZip, file_index, &file_stat))
    return sed_mz_FALSE;

  // Empty file, or a directory (but not always a directory - I've seen odd zips with directories that have compressed data which inflates to 0 bytes)
  if (!file_stat.m_comp_size)
    return sed_mz_TRUE;

  // Entry is a subdirectory (I've seen old zips with dir entries which have compressed deflate data which inflates to 0 bytes, but these entries claim to uncompress to 512 bytes in the headers).
  // I'm torn how to handle this case - should it fail instead?
  if (sed_mz_zip_reader_is_file_a_directory(pZip, file_index))
    return sed_mz_TRUE;

  // Encryption and patch files are not supported.
  if (file_stat.m_bit_flag & (1 | 32))
    return sed_mz_FALSE;

  // This function only supports stored and deflate.
  if ((!(flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != sed_mz_DEFLATED))
    return sed_mz_FALSE;

  // Read and parse the local directory entry.
  cur_file_ofs = file_stat.m_local_header_ofs;
  if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE) != sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE)
    return sed_mz_FALSE;
  if (sed_mz_READ_LE32(pLocal_header) != sed_mz_ZIP_LOCAL_DIR_HEADER_SIG)
    return sed_mz_FALSE;

  cur_file_ofs += sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sed_mz_READ_LE16(pLocal_header + sed_mz_ZIP_LDH_FILENAME_LEN_OFS) + sed_mz_READ_LE16(pLocal_header + sed_mz_ZIP_LDH_EXTRA_LEN_OFS);
  if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
    return sed_mz_FALSE;

  // Decompress the file either directly from memory or from a file input buffer.
  if (pZip->m_pState->m_pMem)
  {
    pRead_buf = (sed_mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
    read_buf_size = read_buf_avail = file_stat.m_comp_size;
    comp_remaining = 0;
  }
  else
  {
    read_buf_size = sed_mz_MIN(file_stat.m_comp_size, sed_mz_ZIP_MAX_IO_BUF_SIZE);
    if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
      return sed_mz_FALSE;
    read_buf_avail = 0;
    comp_remaining = file_stat.m_comp_size;
  }

  if ((flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
  {
    // The file is stored or the caller has requested the compressed data.
    if (pZip->m_pState->m_pMem)
    {
#ifdef _MSC_VER
      if (((0, sizeof(size_t) == sizeof(sed_mz_uint32))) && (file_stat.m_comp_size > 0xFFFFFFFF))
#else
      if (((sizeof(size_t) == sizeof(sed_mz_uint32))) && (file_stat.m_comp_size > 0xFFFFFFFF))
#endif
        return sed_mz_FALSE;
      if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)file_stat.m_comp_size) != file_stat.m_comp_size)
        status = sed_tinfl_STATUS_FAILED;
      else if (!(flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA))
        file_crc32 = (sed_mz_uint32)sed_mz_crc32(file_crc32, (const sed_mz_uint8 *)pRead_buf, (size_t)file_stat.m_comp_size);
      cur_file_ofs += file_stat.m_comp_size;
      out_buf_ofs += file_stat.m_comp_size;
      comp_remaining = 0;
    }
    else
    {
      while (comp_remaining)
      {
        read_buf_avail = sed_mz_MIN(read_buf_size, comp_remaining);
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
        {
          status = sed_tinfl_STATUS_FAILED;
          break;
        }

        if (!(flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA))
          file_crc32 = (sed_mz_uint32)sed_mz_crc32(file_crc32, (const sed_mz_uint8 *)pRead_buf, (size_t)read_buf_avail);

        if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
        {
          status = sed_tinfl_STATUS_FAILED;
          break;
        }
        cur_file_ofs += read_buf_avail;
        out_buf_ofs += read_buf_avail;
        comp_remaining -= read_buf_avail;
      }
    }
  }
  else
  {
    sed_tinfl_decompressor inflator;
    sed_tinfl_init(&inflator);

    if (NULL == (pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sed_tinfl_LZ_DICT_SIZE)))
      status = sed_tinfl_STATUS_FAILED;
    else
    {
      do
      {
        sed_mz_uint8 *pWrite_buf_cur = (sed_mz_uint8 *)pWrite_buf + (out_buf_ofs & (sed_tinfl_LZ_DICT_SIZE - 1));
        size_t in_buf_size, out_buf_size = sed_tinfl_LZ_DICT_SIZE - (out_buf_ofs & (sed_tinfl_LZ_DICT_SIZE - 1));
        if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
        {
          read_buf_avail = sed_mz_MIN(read_buf_size, comp_remaining);
          if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
          {
            status = sed_tinfl_STATUS_FAILED;
            break;
          }
          cur_file_ofs += read_buf_avail;
          comp_remaining -= read_buf_avail;
          read_buf_ofs = 0;
        }

        in_buf_size = (size_t)read_buf_avail;
        status = sed_tinfl_decompress(&inflator, (const sed_mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (sed_mz_uint8 *)pWrite_buf, pWrite_buf_cur, &out_buf_size, comp_remaining ? sed_tinfl_FLAG_HAS_MORE_INPUT : 0);
        read_buf_avail -= in_buf_size;
        read_buf_ofs += in_buf_size;

        if (out_buf_size)
        {
          if (pCallback(pOpaque, out_buf_ofs, pWrite_buf_cur, out_buf_size) != out_buf_size)
          {
            status = sed_tinfl_STATUS_FAILED;
            break;
          }
          file_crc32 = (sed_mz_uint32)sed_mz_crc32(file_crc32, pWrite_buf_cur, out_buf_size);
          if ((out_buf_ofs += out_buf_size) > file_stat.m_uncomp_size)
          {
            status = sed_tinfl_STATUS_FAILED;
            break;
          }
        }
      } while ((status == sed_tinfl_STATUS_NEEDS_MORE_INPUT) || (status == sed_tinfl_STATUS_HAS_MORE_OUTPUT));
    }
  }

  if ((status == sed_tinfl_STATUS_DONE) && (!(flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA)))
  {
    // Make sure the entire file was decompressed, and check its CRC.
    if ((out_buf_ofs != file_stat.m_uncomp_size) || (file_crc32 != file_stat.m_crc32))
      status = sed_tinfl_STATUS_FAILED;
  }

  if (!pZip->m_pState->m_pMem)
    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
  if (pWrite_buf)
    pZip->m_pFree(pZip->m_pAlloc_opaque, pWrite_buf);

  return status == sed_tinfl_STATUS_DONE;
}

sed_mz_bool sed_mz_zip_reader_extract_file_to_callback(sed_mz_zip_archive *pZip, const char *pFilename, sed_mz_file_write_func pCallback, void *pOpaque, sed_mz_uint flags)
{
  int file_index = sed_mz_zip_reader_locate_file(pZip, pFilename, NULL, flags);
  if (file_index < 0)
    return sed_mz_FALSE;
  return sed_mz_zip_reader_extract_to_callback(pZip, file_index, pCallback, pOpaque, flags);
}

#ifndef MINIZ_NO_STDIO
static size_t sed_mz_zip_file_write_callback(void *pOpaque, sed_mz_uint64 ofs, const void *pBuf, size_t n)
{
  (void)ofs; return sed_mz_FWRITE(pBuf, 1, n, (sed_mz_FILE*)pOpaque);
}

sed_mz_bool sed_mz_zip_reader_extract_to_file(sed_mz_zip_archive *pZip, sed_mz_uint file_index, const char *pDst_filename, sed_mz_uint flags)
{
  sed_mz_bool status;
  sed_mz_zip_archive_file_stat file_stat;
  sed_mz_FILE *pFile;
  if (!sed_mz_zip_reader_file_stat(pZip, file_index, &file_stat))
    return sed_mz_FALSE;
  pFile = sed_mz_FOPEN(pDst_filename, "wb");
  if (!pFile)
    return sed_mz_FALSE;
  status = sed_mz_zip_reader_extract_to_callback(pZip, file_index, sed_mz_zip_file_write_callback, pFile, flags);
  if (sed_mz_FCLOSE(pFile) == EOF)
    return sed_mz_FALSE;
#ifndef MINIZ_NO_TIME
  if (status)
    sed_mz_zip_set_file_times(pDst_filename, file_stat.m_time, file_stat.m_time);
#endif
  return status;
}
#endif // #ifndef MINIZ_NO_STDIO

sed_mz_bool sed_mz_zip_reader_end(sed_mz_zip_archive *pZip)
{
  if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_READING))
    return sed_mz_FALSE;

  if (pZip->m_pState)
  {
    sed_mz_zip_internal_state *pState = pZip->m_pState; pZip->m_pState = NULL;
    sed_mz_zip_array_clear(pZip, &pState->m_central_dir);
    sed_mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
    sed_mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);

#ifndef MINIZ_NO_STDIO
    if (pState->m_pFile)
    {
      sed_mz_FCLOSE(pState->m_pFile);
      pState->m_pFile = NULL;
    }
#endif // #ifndef MINIZ_NO_STDIO

    pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
  }
  pZip->m_zip_mode = sed_mz_ZIP_MODE_INVALID;

  return sed_mz_TRUE;
}

#ifndef MINIZ_NO_STDIO
sed_mz_bool sed_mz_zip_reader_extract_file_to_file(sed_mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, sed_mz_uint flags)
{
  int file_index = sed_mz_zip_reader_locate_file(pZip, pArchive_filename, NULL, flags);
  if (file_index < 0)
    return sed_mz_FALSE;
  return sed_mz_zip_reader_extract_to_file(pZip, file_index, pDst_filename, flags);
}
#endif

// ------------------- .ZIP archive writing

#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

static void sed_mz_write_le16(sed_mz_uint8 *p, sed_mz_uint16 v) { p[0] = (sed_mz_uint8)v; p[1] = (sed_mz_uint8)(v >> 8); }
static void sed_mz_write_le32(sed_mz_uint8 *p, sed_mz_uint32 v) { p[0] = (sed_mz_uint8)v; p[1] = (sed_mz_uint8)(v >> 8); p[2] = (sed_mz_uint8)(v >> 16); p[3] = (sed_mz_uint8)(v >> 24); }
#define sed_mz_WRITE_LE16(p, v) sed_mz_write_le16((sed_mz_uint8 *)(p), (sed_mz_uint16)(v))
#define sed_mz_WRITE_LE32(p, v) sed_mz_write_le32((sed_mz_uint8 *)(p), (sed_mz_uint32)(v))

sed_mz_bool sed_mz_zip_writer_init(sed_mz_zip_archive *pZip, sed_mz_uint64 existing_size)
{
  if ((!pZip) || (pZip->m_pState) || (!pZip->m_pWrite) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_INVALID))
    return sed_mz_FALSE;

  if (pZip->m_file_offset_alignment)
  {
    // Ensure user specified file offset alignment is a power of 2.
    if (pZip->m_file_offset_alignment & (pZip->m_file_offset_alignment - 1))
      return sed_mz_FALSE;
  }

  if (!pZip->m_pAlloc) pZip->m_pAlloc = def_alloc_func;
  if (!pZip->m_pFree) pZip->m_pFree = def_free_func;
  if (!pZip->m_pRealloc) pZip->m_pRealloc = def_realloc_func;

  pZip->m_zip_mode = sed_mz_ZIP_MODE_WRITING;
  pZip->m_archive_size = existing_size;
  pZip->m_central_directory_file_ofs = 0;
  pZip->m_total_files = 0;

  if (NULL == (pZip->m_pState = (sed_mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(sed_mz_zip_internal_state))))
    return sed_mz_FALSE;
  memset(pZip->m_pState, 0, sizeof(sed_mz_zip_internal_state));
  sed_mz_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(sed_mz_uint8));
  sed_mz_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(sed_mz_uint32));
  sed_mz_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(sed_mz_uint32));
  return sed_mz_TRUE;
}

static size_t sed_mz_zip_heap_write_func(void *pOpaque, sed_mz_uint64 file_ofs, const void *pBuf, size_t n)
{
  sed_mz_zip_archive *pZip = (sed_mz_zip_archive *)pOpaque;
  sed_mz_zip_internal_state *pState = pZip->m_pState;
  sed_mz_uint64 new_size = sed_mz_MAX(file_ofs + n, pState->m_mem_size);
#ifdef _MSC_VER
  if ((!n) || ((0, sizeof(size_t) == sizeof(sed_mz_uint32)) && (new_size > 0x7FFFFFFF)))
#else
  if ((!n) || ((sizeof(size_t) == sizeof(sed_mz_uint32)) && (new_size > 0x7FFFFFFF)))
#endif
    return 0;
  if (new_size > pState->m_mem_capacity)
  {
    void *pNew_block;
    size_t new_capacity = sed_mz_MAX(64, pState->m_mem_capacity); while (new_capacity < new_size) new_capacity *= 2;
    if (NULL == (pNew_block = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pState->m_pMem, 1, new_capacity)))
      return 0;
    pState->m_pMem = pNew_block; pState->m_mem_capacity = new_capacity;
  }
  memcpy((sed_mz_uint8 *)pState->m_pMem + file_ofs, pBuf, n);
  pState->m_mem_size = (size_t)new_size;
  return n;
}

sed_mz_bool sed_mz_zip_writer_init_heap(sed_mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size)
{
  pZip->m_pWrite = sed_mz_zip_heap_write_func;
  pZip->m_pIO_opaque = pZip;
  if (!sed_mz_zip_writer_init(pZip, size_to_reserve_at_beginning))
    return sed_mz_FALSE;
  if (0 != (initial_allocation_size = sed_mz_MAX(initial_allocation_size, size_to_reserve_at_beginning)))
  {
    if (NULL == (pZip->m_pState->m_pMem = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, initial_allocation_size)))
    {
      sed_mz_zip_writer_end(pZip);
      return sed_mz_FALSE;
    }
    pZip->m_pState->m_mem_capacity = initial_allocation_size;
  }
  return sed_mz_TRUE;
}

#ifndef MINIZ_NO_STDIO
static size_t sed_mz_zip_file_write_func(void *pOpaque, sed_mz_uint64 file_ofs, const void *pBuf, size_t n)
{
  sed_mz_zip_archive *pZip = (sed_mz_zip_archive *)pOpaque;
  sed_mz_int64 cur_ofs = sed_mz_FTELL64(pZip->m_pState->m_pFile);
  if (((sed_mz_int64)file_ofs < 0) || (((cur_ofs != (sed_mz_int64)file_ofs)) && (sed_mz_FSEEK64(pZip->m_pState->m_pFile, (sed_mz_int64)file_ofs, SEEK_SET))))
    return 0;
  return sed_mz_FWRITE(pBuf, 1, n, pZip->m_pState->m_pFile);
}

sed_mz_bool sed_mz_zip_writer_init_file(sed_mz_zip_archive *pZip, const char *pFilename, sed_mz_uint64 size_to_reserve_at_beginning)
{
  sed_mz_FILE *pFile;
  pZip->m_pWrite = sed_mz_zip_file_write_func;
  pZip->m_pIO_opaque = pZip;
  if (!sed_mz_zip_writer_init(pZip, size_to_reserve_at_beginning))
    return sed_mz_FALSE;
  if (NULL == (pFile = sed_mz_FOPEN(pFilename, "wb")))
  {
    sed_mz_zip_writer_end(pZip);
    return sed_mz_FALSE;
  }
  pZip->m_pState->m_pFile = pFile;
  if (size_to_reserve_at_beginning)
  {
    sed_mz_uint64 cur_ofs = 0; char buf[4096]; sed_mz_CLEAR_OBJ(buf);
    do
    {
      size_t n = (size_t)sed_mz_MIN(sizeof(buf), size_to_reserve_at_beginning);
      if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_ofs, buf, n) != n)
      {
        sed_mz_zip_writer_end(pZip);
        return sed_mz_FALSE;
      }
      cur_ofs += n; size_to_reserve_at_beginning -= n;
    } while (size_to_reserve_at_beginning);
  }
  return sed_mz_TRUE;
}
#endif // #ifndef MINIZ_NO_STDIO

sed_mz_bool sed_mz_zip_writer_init_from_reader(sed_mz_zip_archive *pZip, const char *pFilename)
{
  sed_mz_zip_internal_state *pState;
  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_READING))
    return sed_mz_FALSE;
  // No sense in trying to write to an archive that's already at the support max size
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE) > 0xFFFFFFFF))
    return sed_mz_FALSE;

  pState = pZip->m_pState;

  if (pState->m_pFile)
  {
#ifdef MINIZ_NO_STDIO
    pFilename; return sed_mz_FALSE;
#else
    // Archive is being read from stdio - try to reopen as writable.
    if (pZip->m_pIO_opaque != pZip)
      return sed_mz_FALSE;
    if (!pFilename)
      return sed_mz_FALSE;
    pZip->m_pWrite = sed_mz_zip_file_write_func;
    if (NULL == (pState->m_pFile = sed_mz_FREOPEN(pFilename, "r+b", pState->m_pFile)))
    {
      // The sed_mz_zip_archive is now in a bogus state because pState->m_pFile is NULL, so just close it.
      sed_mz_zip_reader_end(pZip);
      return sed_mz_FALSE;
    }
#endif // #ifdef MINIZ_NO_STDIO
  }
  else if (pState->m_pMem)
  {
    // Archive lives in a memory block. Assume it's from the heap that we can resize using the realloc callback.
    if (pZip->m_pIO_opaque != pZip)
      return sed_mz_FALSE;
    pState->m_mem_capacity = pState->m_mem_size;
    pZip->m_pWrite = sed_mz_zip_heap_write_func;
  }
  // Archive is being read via a user provided read function - make sure the user has specified a write function too.
  else if (!pZip->m_pWrite)
    return sed_mz_FALSE;

  // Start writing new files at the archive's current central directory location.
  pZip->m_archive_size = pZip->m_central_directory_file_ofs;
  pZip->m_zip_mode = sed_mz_ZIP_MODE_WRITING;
  pZip->m_central_directory_file_ofs = 0;

  return sed_mz_TRUE;
}

sed_mz_bool sed_mz_zip_writer_add_mem(sed_mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, sed_mz_uint level_and_flags)
{
  return sed_mz_zip_writer_add_mem_ex(pZip, pArchive_name, pBuf, buf_size, NULL, 0, level_and_flags, 0, 0);
}

typedef struct
{
  sed_mz_zip_archive *m_pZip;
  sed_mz_uint64 m_cur_archive_file_ofs;
  sed_mz_uint64 m_comp_size;
} sed_mz_zip_writer_add_state;

static sed_mz_bool sed_mz_zip_writer_add_put_buf_callback(const void* pBuf, int len, void *pUser)
{
  sed_mz_zip_writer_add_state *pState = (sed_mz_zip_writer_add_state *)pUser;
  if ((int)pState->m_pZip->m_pWrite(pState->m_pZip->m_pIO_opaque, pState->m_cur_archive_file_ofs, pBuf, len) != len)
    return sed_mz_FALSE;
  pState->m_cur_archive_file_ofs += len;
  pState->m_comp_size += len;
  return sed_mz_TRUE;
}

static sed_mz_bool sed_mz_zip_writer_create_local_dir_header(sed_mz_zip_archive *pZip, sed_mz_uint8 *pDst, sed_mz_uint16 filename_size, sed_mz_uint16 extra_size, sed_mz_uint64 uncomp_size, sed_mz_uint64 comp_size, sed_mz_uint32 uncomp_crc32, sed_mz_uint16 method, sed_mz_uint16 bit_flags, sed_mz_uint16 dos_time, sed_mz_uint16 dos_date)
{
  (void)pZip;
  memset(pDst, 0, sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_LDH_SIG_OFS, sed_mz_ZIP_LOCAL_DIR_HEADER_SIG);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_LDH_VERSION_NEEDED_OFS, method ? 20 : 0);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_LDH_BIT_FLAG_OFS, bit_flags);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_LDH_METHOD_OFS, method);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_LDH_FILE_TIME_OFS, dos_time);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_LDH_FILE_DATE_OFS, dos_date);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_LDH_CRC32_OFS, uncomp_crc32);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_LDH_COMPRESSED_SIZE_OFS, comp_size);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_LDH_DECOMPRESSED_SIZE_OFS, uncomp_size);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_LDH_FILENAME_LEN_OFS, filename_size);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_LDH_EXTRA_LEN_OFS, extra_size);
  return sed_mz_TRUE;
}

static sed_mz_bool sed_mz_zip_writer_create_central_dir_header(sed_mz_zip_archive *pZip, sed_mz_uint8 *pDst, sed_mz_uint16 filename_size, sed_mz_uint16 extra_size, sed_mz_uint16 comment_size, sed_mz_uint64 uncomp_size, sed_mz_uint64 comp_size, sed_mz_uint32 uncomp_crc32, sed_mz_uint16 method, sed_mz_uint16 bit_flags, sed_mz_uint16 dos_time, sed_mz_uint16 dos_date, sed_mz_uint64 local_header_ofs, sed_mz_uint32 ext_attributes)
{
  (void)pZip;
  memset(pDst, 0, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_CDH_SIG_OFS, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIG);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_VERSION_NEEDED_OFS, method ? 20 : 0);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_BIT_FLAG_OFS, bit_flags);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_METHOD_OFS, method);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_FILE_TIME_OFS, dos_time);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_FILE_DATE_OFS, dos_date);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_CDH_CRC32_OFS, uncomp_crc32);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_CDH_COMPRESSED_SIZE_OFS, comp_size);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_CDH_DECOMPRESSED_SIZE_OFS, uncomp_size);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_FILENAME_LEN_OFS, filename_size);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_EXTRA_LEN_OFS, extra_size);
  sed_mz_WRITE_LE16(pDst + sed_mz_ZIP_CDH_COMMENT_LEN_OFS, comment_size);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_CDH_EXTERNAL_ATTR_OFS, ext_attributes);
  sed_mz_WRITE_LE32(pDst + sed_mz_ZIP_CDH_LOCAL_HEADER_OFS, local_header_ofs);
  return sed_mz_TRUE;
}

static sed_mz_bool sed_mz_zip_writer_add_to_central_dir(sed_mz_zip_archive *pZip, const char *pFilename, sed_mz_uint16 filename_size, const void *pExtra, sed_mz_uint16 extra_size, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint64 uncomp_size, sed_mz_uint64 comp_size, sed_mz_uint32 uncomp_crc32, sed_mz_uint16 method, sed_mz_uint16 bit_flags, sed_mz_uint16 dos_time, sed_mz_uint16 dos_date, sed_mz_uint64 local_header_ofs, sed_mz_uint32 ext_attributes)
{
  sed_mz_zip_internal_state *pState = pZip->m_pState;
  sed_mz_uint32 central_dir_ofs = (sed_mz_uint32)pState->m_central_dir.m_size;
  size_t orig_central_dir_size = pState->m_central_dir.m_size;
  sed_mz_uint8 central_dir_header[sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE];

  // No zip64 support yet
  if ((local_header_ofs > 0xFFFFFFFF) || (((sed_mz_uint64)pState->m_central_dir.m_size + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + extra_size + comment_size) > 0xFFFFFFFF))
    return sed_mz_FALSE;

  if (!sed_mz_zip_writer_create_central_dir_header(pZip, central_dir_header, filename_size, extra_size, comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_header_ofs, ext_attributes))
    return sed_mz_FALSE;

  if ((!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir, central_dir_header, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE)) ||
      (!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir, pFilename, filename_size)) ||
      (!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir, pExtra, extra_size)) ||
      (!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir, pComment, comment_size)) ||
      (!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &central_dir_ofs, 1)))
  {
    // Try to push the central directory array back into its original state.
    sed_mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, sed_mz_FALSE);
    return sed_mz_FALSE;
  }

  return sed_mz_TRUE;
}

static sed_mz_bool sed_mz_zip_writer_validate_archive_name(const char *pArchive_name)
{
  // Basic ZIP archive filename validity checks: Valid filenames cannot start with a forward slash, cannot contain a drive letter, and cannot use DOS-style backward slashes.
  if (*pArchive_name == '/')
    return sed_mz_FALSE;
  while (*pArchive_name)
  {
    if ((*pArchive_name == '\\') || (*pArchive_name == ':'))
      return sed_mz_FALSE;
    pArchive_name++;
  }
  return sed_mz_TRUE;
}

static sed_mz_uint sed_mz_zip_writer_compute_padding_needed_for_file_alignment(sed_mz_zip_archive *pZip)
{
  sed_mz_uint32 n;
  if (!pZip->m_file_offset_alignment)
    return 0;
  n = (sed_mz_uint32)(pZip->m_archive_size & (pZip->m_file_offset_alignment - 1));
  return (pZip->m_file_offset_alignment - n) & (pZip->m_file_offset_alignment - 1);
}

static sed_mz_bool sed_mz_zip_writer_write_zeros(sed_mz_zip_archive *pZip, sed_mz_uint64 cur_file_ofs, sed_mz_uint32 n)
{
  char buf[4096];
  memset(buf, 0, sed_mz_MIN(sizeof(buf), n));
  while (n)
  {
    sed_mz_uint32 s = sed_mz_MIN(sizeof(buf), n);
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_file_ofs, buf, s) != s)
      return sed_mz_FALSE;
    cur_file_ofs += s; n -= s;
  }
  return sed_mz_TRUE;
}

sed_mz_bool sed_mz_zip_writer_add_mem_ex(sed_mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint level_and_flags, sed_mz_uint64 uncomp_size, sed_mz_uint32 uncomp_crc32)
{
  sed_mz_uint16 method = 0, dos_time = 0, dos_date = 0;
  sed_mz_uint level, ext_attributes = 0, num_alignment_padding_bytes;
  sed_mz_uint64 local_dir_header_ofs = pZip->m_archive_size, cur_archive_file_ofs = pZip->m_archive_size, comp_size = 0;
  size_t archive_name_size;
  sed_mz_uint8 local_dir_header[sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE];
  sed_tdefl_compressor *pComp = NULL;
  sed_mz_bool store_data_uncompressed;
  sed_mz_zip_internal_state *pState;

  if ((int)level_and_flags < 0)
    level_and_flags = sed_mz_DEFAULT_LEVEL;
  level = level_and_flags & 0xF;
  store_data_uncompressed = ((!level) || (level_and_flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA));

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_WRITING) || ((buf_size) && (!pBuf)) || (!pArchive_name) || ((comment_size) && (!pComment)) || (pZip->m_total_files == 0xFFFF) || (level > sed_mz_UBER_COMPRESSION))
    return sed_mz_FALSE;

  pState = pZip->m_pState;

  if ((!(level_and_flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA)) && (uncomp_size))
    return sed_mz_FALSE;
  // No zip64 support yet
  if ((buf_size > 0xFFFFFFFF) || (uncomp_size > 0xFFFFFFFF))
    return sed_mz_FALSE;
  if (!sed_mz_zip_writer_validate_archive_name(pArchive_name))
    return sed_mz_FALSE;

#ifndef MINIZ_NO_TIME
  {
    time_t cur_time; time(&cur_time);
    sed_mz_zip_time_to_dos_time(cur_time, &dos_time, &dos_date);
  }
#endif // #ifndef MINIZ_NO_TIME

  archive_name_size = strlen(pArchive_name);
  if (archive_name_size > 0xFFFF)
    return sed_mz_FALSE;

  num_alignment_padding_bytes = sed_mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);

  // no zip64 support yet
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + num_alignment_padding_bytes + sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + comment_size + archive_name_size) > 0xFFFFFFFF))
    return sed_mz_FALSE;

  if ((archive_name_size) && (pArchive_name[archive_name_size - 1] == '/'))
  {
    // Set DOS Subdirectory attribute bit.
    ext_attributes |= 0x10;
    // Subdirectories cannot contain data.
    if ((buf_size) || (uncomp_size))
      return sed_mz_FALSE;
  }

  // Try to do any allocations before writing to the archive, so if an allocation fails the file remains unmodified. (A good idea if we're doing an in-place modification.)
  if ((!sed_mz_zip_array_ensure_room(pZip, &pState->m_central_dir, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size)) || (!sed_mz_zip_array_ensure_room(pZip, &pState->m_central_dir_offsets, 1)))
    return sed_mz_FALSE;

  if ((!store_data_uncompressed) && (buf_size))
  {
    if (NULL == (pComp = (sed_tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(sed_tdefl_compressor))))
      return sed_mz_FALSE;
  }

  if (!sed_mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes + sizeof(local_dir_header)))
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
    return sed_mz_FALSE;
  }
  local_dir_header_ofs += num_alignment_padding_bytes;
  if (pZip->m_file_offset_alignment) { sed_mz_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); }
  cur_archive_file_ofs += num_alignment_padding_bytes + sizeof(local_dir_header);

  sed_mz_CLEAR_OBJ(local_dir_header);
  if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
    return sed_mz_FALSE;
  }
  cur_archive_file_ofs += archive_name_size;

  if (!(level_and_flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA))
  {
    uncomp_crc32 = (sed_mz_uint32)sed_mz_crc32(sed_mz_CRC32_INIT, (const sed_mz_uint8*)pBuf, buf_size);
    uncomp_size = buf_size;
    if (uncomp_size <= 3)
    {
      level = 0;
      store_data_uncompressed = sed_mz_TRUE;
    }
  }

  if (store_data_uncompressed)
  {
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pBuf, buf_size) != buf_size)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
      return sed_mz_FALSE;
    }

    cur_archive_file_ofs += buf_size;
    comp_size = buf_size;

    if (level_and_flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA)
      method = sed_mz_DEFLATED;
  }
  else if (buf_size)
  {
    sed_mz_zip_writer_add_state state;

    state.m_pZip = pZip;
    state.m_cur_archive_file_ofs = cur_archive_file_ofs;
    state.m_comp_size = 0;

    if ((sed_tdefl_init(pComp, sed_mz_zip_writer_add_put_buf_callback, &state, sed_tdefl_create_comp_flags_from_zip_params(level, -15, sed_mz_DEFAULT_STRATEGY)) != sed_tdefl_STATUS_OKAY) ||
        (sed_tdefl_compress_buffer(pComp, pBuf, buf_size, sed_tdefl_FINISH) != sed_tdefl_STATUS_DONE))
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
      return sed_mz_FALSE;
    }

    comp_size = state.m_comp_size;
    cur_archive_file_ofs = state.m_cur_archive_file_ofs;

    method = sed_mz_DEFLATED;
  }

  pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
  pComp = NULL;

  // no zip64 support yet
  if ((comp_size > 0xFFFFFFFF) || (cur_archive_file_ofs > 0xFFFFFFFF))
    return sed_mz_FALSE;

  if (!sed_mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (sed_mz_uint16)archive_name_size, 0, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date))
    return sed_mz_FALSE;

  if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
    return sed_mz_FALSE;

  if (!sed_mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (sed_mz_uint16)archive_name_size, NULL, 0, pComment, comment_size, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date, local_dir_header_ofs, ext_attributes))
    return sed_mz_FALSE;

  pZip->m_total_files++;
  pZip->m_archive_size = cur_archive_file_ofs;

  return sed_mz_TRUE;
}

#ifndef MINIZ_NO_STDIO
sed_mz_bool sed_mz_zip_writer_add_file(sed_mz_zip_archive *pZip, const char *pArchive_name, const char *pSrc_filename, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint level_and_flags)
{
  sed_mz_uint uncomp_crc32 = sed_mz_CRC32_INIT, level, num_alignment_padding_bytes;
  sed_mz_uint16 method = 0, dos_time = 0, dos_date = 0, ext_attributes = 0;
  sed_mz_uint64 local_dir_header_ofs = pZip->m_archive_size, cur_archive_file_ofs = pZip->m_archive_size, uncomp_size = 0, comp_size = 0;
  size_t archive_name_size;
  sed_mz_uint8 local_dir_header[sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE];
  sed_mz_FILE *pSrc_file = NULL;

  if ((int)level_and_flags < 0)
    level_and_flags = sed_mz_DEFAULT_LEVEL;
  level = level_and_flags & 0xF;

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_WRITING) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > sed_mz_UBER_COMPRESSION))
    return sed_mz_FALSE;
  if (level_and_flags & sed_mz_ZIP_FLAG_COMPRESSED_DATA)
    return sed_mz_FALSE;
  if (!sed_mz_zip_writer_validate_archive_name(pArchive_name))
    return sed_mz_FALSE;

  archive_name_size = strlen(pArchive_name);
  if (archive_name_size > 0xFFFF)
    return sed_mz_FALSE;

  num_alignment_padding_bytes = sed_mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);

  // no zip64 support yet
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + num_alignment_padding_bytes + sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE + comment_size + archive_name_size) > 0xFFFFFFFF))
    return sed_mz_FALSE;

  if (!sed_mz_zip_get_file_modified_time(pSrc_filename, &dos_time, &dos_date))
    return sed_mz_FALSE;
    
  pSrc_file = sed_mz_FOPEN(pSrc_filename, "rb");
  if (!pSrc_file)
    return sed_mz_FALSE;
  sed_mz_FSEEK64(pSrc_file, 0, SEEK_END);
  uncomp_size = sed_mz_FTELL64(pSrc_file);
  sed_mz_FSEEK64(pSrc_file, 0, SEEK_SET);

  if (uncomp_size > 0xFFFFFFFF)
  {
    // No zip64 support yet
    sed_mz_FCLOSE(pSrc_file);
    return sed_mz_FALSE;
  }
  if (uncomp_size <= 3)
    level = 0;

  if (!sed_mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes + sizeof(local_dir_header)))
  {
    sed_mz_FCLOSE(pSrc_file);
    return sed_mz_FALSE;
  }
  local_dir_header_ofs += num_alignment_padding_bytes;
  if (pZip->m_file_offset_alignment) { sed_mz_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); }
  cur_archive_file_ofs += num_alignment_padding_bytes + sizeof(local_dir_header);

  sed_mz_CLEAR_OBJ(local_dir_header);
  if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
  {
    sed_mz_FCLOSE(pSrc_file);
    return sed_mz_FALSE;
  }
  cur_archive_file_ofs += archive_name_size;

  if (uncomp_size)
  {
    sed_mz_uint64 uncomp_remaining = uncomp_size;
    void *pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sed_mz_ZIP_MAX_IO_BUF_SIZE);
    if (!pRead_buf)
    {
      sed_mz_FCLOSE(pSrc_file);
      return sed_mz_FALSE;
    }

    if (!level)
    {
      while (uncomp_remaining)
      {
        sed_mz_uint n = (sed_mz_uint)sed_mz_MIN(sed_mz_ZIP_MAX_IO_BUF_SIZE, uncomp_remaining);
        if ((sed_mz_FREAD(pRead_buf, 1, n, pSrc_file) != n) || (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pRead_buf, n) != n))
        {
          pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
          sed_mz_FCLOSE(pSrc_file);
          return sed_mz_FALSE;
        }
        uncomp_crc32 = (sed_mz_uint32)sed_mz_crc32(uncomp_crc32, (const sed_mz_uint8 *)pRead_buf, n);
        uncomp_remaining -= n;
        cur_archive_file_ofs += n;
      }
      comp_size = uncomp_size;
    }
    else
    {
      sed_mz_bool result = sed_mz_FALSE;
      sed_mz_zip_writer_add_state state;
      sed_tdefl_compressor *pComp = (sed_tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(sed_tdefl_compressor));
      if (!pComp)
      {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
        sed_mz_FCLOSE(pSrc_file);
        return sed_mz_FALSE;
      }

      state.m_pZip = pZip;
      state.m_cur_archive_file_ofs = cur_archive_file_ofs;
      state.m_comp_size = 0;

      if (sed_tdefl_init(pComp, sed_mz_zip_writer_add_put_buf_callback, &state, sed_tdefl_create_comp_flags_from_zip_params(level, -15, sed_mz_DEFAULT_STRATEGY)) != sed_tdefl_STATUS_OKAY)
      {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
        sed_mz_FCLOSE(pSrc_file);
        return sed_mz_FALSE;
      }

      for ( ; ; )
      {
        size_t in_buf_size = (sed_mz_uint32)sed_mz_MIN(uncomp_remaining, sed_mz_ZIP_MAX_IO_BUF_SIZE);
        sed_tdefl_status status;

        if (sed_mz_FREAD(pRead_buf, 1, in_buf_size, pSrc_file) != in_buf_size)
          break;

        uncomp_crc32 = (sed_mz_uint32)sed_mz_crc32(uncomp_crc32, (const sed_mz_uint8 *)pRead_buf, in_buf_size);
        uncomp_remaining -= in_buf_size;

        status = sed_tdefl_compress_buffer(pComp, pRead_buf, in_buf_size, uncomp_remaining ? sed_tdefl_NO_FLUSH : sed_tdefl_FINISH);
        if (status == sed_tdefl_STATUS_DONE)
        {
          result = sed_mz_TRUE;
          break;
        }
        else if (status != sed_tdefl_STATUS_OKAY)
          break;
      }

      pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);

      if (!result)
      {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
        sed_mz_FCLOSE(pSrc_file);
        return sed_mz_FALSE;
      }

      comp_size = state.m_comp_size;
      cur_archive_file_ofs = state.m_cur_archive_file_ofs;

      method = sed_mz_DEFLATED;
    }

    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
  }

  sed_mz_FCLOSE(pSrc_file); pSrc_file = NULL;

  // no zip64 support yet
  if ((comp_size > 0xFFFFFFFF) || (cur_archive_file_ofs > 0xFFFFFFFF))
    return sed_mz_FALSE;

  if (!sed_mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (sed_mz_uint16)archive_name_size, 0, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date))
    return sed_mz_FALSE;

  if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
    return sed_mz_FALSE;

  if (!sed_mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (sed_mz_uint16)archive_name_size, NULL, 0, pComment, comment_size, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date, local_dir_header_ofs, ext_attributes))
    return sed_mz_FALSE;

  pZip->m_total_files++;
  pZip->m_archive_size = cur_archive_file_ofs;

  return sed_mz_TRUE;
}
#endif // #ifndef MINIZ_NO_STDIO

sed_mz_bool sed_mz_zip_writer_add_from_zip_reader(sed_mz_zip_archive *pZip, sed_mz_zip_archive *pSource_zip, sed_mz_uint file_index)
{
  sed_mz_uint n, bit_flags, num_alignment_padding_bytes;
  sed_mz_uint64 comp_bytes_remaining, local_dir_header_ofs;
  sed_mz_uint64 cur_src_file_ofs, cur_dst_file_ofs;
  sed_mz_uint32 local_header_u32[(sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(sed_mz_uint32) - 1) / sizeof(sed_mz_uint32)]; sed_mz_uint8 *pLocal_header = (sed_mz_uint8 *)local_header_u32;
  sed_mz_uint8 central_header[sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE];
  size_t orig_central_dir_size;
  sed_mz_zip_internal_state *pState;
  void *pBuf; const sed_mz_uint8 *pSrc_central_header;

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_WRITING))
    return sed_mz_FALSE;
  if (NULL == (pSrc_central_header = sed_mz_zip_reader_get_cdh(pSource_zip, file_index)))
    return sed_mz_FALSE;
  pState = pZip->m_pState;

  num_alignment_padding_bytes = sed_mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);

  // no zip64 support yet
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + num_alignment_padding_bytes + sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE) > 0xFFFFFFFF))
    return sed_mz_FALSE;

  cur_src_file_ofs = sed_mz_READ_LE32(pSrc_central_header + sed_mz_ZIP_CDH_LOCAL_HEADER_OFS);
  cur_dst_file_ofs = pZip->m_archive_size;

  if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pLocal_header, sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE) != sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE)
    return sed_mz_FALSE;
  if (sed_mz_READ_LE32(pLocal_header) != sed_mz_ZIP_LOCAL_DIR_HEADER_SIG)
    return sed_mz_FALSE;
  cur_src_file_ofs += sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE;

  if (!sed_mz_zip_writer_write_zeros(pZip, cur_dst_file_ofs, num_alignment_padding_bytes))
    return sed_mz_FALSE;
  cur_dst_file_ofs += num_alignment_padding_bytes;
  local_dir_header_ofs = cur_dst_file_ofs;
  if (pZip->m_file_offset_alignment) { sed_mz_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); }

  if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pLocal_header, sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE) != sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE)
    return sed_mz_FALSE;
  cur_dst_file_ofs += sed_mz_ZIP_LOCAL_DIR_HEADER_SIZE;

  n = sed_mz_READ_LE16(pLocal_header + sed_mz_ZIP_LDH_FILENAME_LEN_OFS) + sed_mz_READ_LE16(pLocal_header + sed_mz_ZIP_LDH_EXTRA_LEN_OFS);
  comp_bytes_remaining = n + sed_mz_READ_LE32(pSrc_central_header + sed_mz_ZIP_CDH_COMPRESSED_SIZE_OFS);

  if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)sed_mz_MAX(sizeof(sed_mz_uint32) * 4, sed_mz_MIN(sed_mz_ZIP_MAX_IO_BUF_SIZE, comp_bytes_remaining)))))
    return sed_mz_FALSE;

  while (comp_bytes_remaining)
  {
    n = (sed_mz_uint)sed_mz_MIN(sed_mz_ZIP_MAX_IO_BUF_SIZE, comp_bytes_remaining);
    if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, n) != n)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return sed_mz_FALSE;
    }
    cur_src_file_ofs += n;

    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return sed_mz_FALSE;
    }
    cur_dst_file_ofs += n;

    comp_bytes_remaining -= n;
  }

  bit_flags = sed_mz_READ_LE16(pLocal_header + sed_mz_ZIP_LDH_BIT_FLAG_OFS);
  if (bit_flags & 8)
  {
    // Copy data descriptor
    if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, sizeof(sed_mz_uint32) * 4) != sizeof(sed_mz_uint32) * 4)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return sed_mz_FALSE;
    }

    n = sizeof(sed_mz_uint32) * ((sed_mz_READ_LE32(pBuf) == 0x08074b50) ? 4 : 3);
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return sed_mz_FALSE;
    }

    cur_src_file_ofs += n;
    cur_dst_file_ofs += n;
  }
  pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);

  // no zip64 support yet
  if (cur_dst_file_ofs > 0xFFFFFFFF)
    return sed_mz_FALSE;

  orig_central_dir_size = pState->m_central_dir.m_size;

  memcpy(central_header, pSrc_central_header, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE);
  sed_mz_WRITE_LE32(central_header + sed_mz_ZIP_CDH_LOCAL_HEADER_OFS, local_dir_header_ofs);
  if (!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir, central_header, sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE))
    return sed_mz_FALSE;

  n = sed_mz_READ_LE16(pSrc_central_header + sed_mz_ZIP_CDH_FILENAME_LEN_OFS) + sed_mz_READ_LE16(pSrc_central_header + sed_mz_ZIP_CDH_EXTRA_LEN_OFS) + sed_mz_READ_LE16(pSrc_central_header + sed_mz_ZIP_CDH_COMMENT_LEN_OFS);
  if (!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + sed_mz_ZIP_CENTRAL_DIR_HEADER_SIZE, n))
  {
    sed_mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, sed_mz_FALSE);
    return sed_mz_FALSE;
  }

  if (pState->m_central_dir.m_size > 0xFFFFFFFF)
    return sed_mz_FALSE;
  n = (sed_mz_uint32)orig_central_dir_size;
  if (!sed_mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &n, 1))
  {
    sed_mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, sed_mz_FALSE);
    return sed_mz_FALSE;
  }

  pZip->m_total_files++;
  pZip->m_archive_size = cur_dst_file_ofs;

  return sed_mz_TRUE;
}

sed_mz_bool sed_mz_zip_writer_finalize_archive(sed_mz_zip_archive *pZip)
{
  sed_mz_zip_internal_state *pState;
  sed_mz_uint64 central_dir_ofs, central_dir_size;
  sed_mz_uint8 hdr[sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE];

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != sed_mz_ZIP_MODE_WRITING))
    return sed_mz_FALSE;

  pState = pZip->m_pState;

  // no zip64 support yet
  if ((pZip->m_total_files > 0xFFFF) || ((pZip->m_archive_size + pState->m_central_dir.m_size + sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) > 0xFFFFFFFF))
    return sed_mz_FALSE;

  central_dir_ofs = 0;
  central_dir_size = 0;
  if (pZip->m_total_files)
  {
    // Write central directory
    central_dir_ofs = pZip->m_archive_size;
    central_dir_size = pState->m_central_dir.m_size;
    pZip->m_central_directory_file_ofs = central_dir_ofs;
    if (pZip->m_pWrite(pZip->m_pIO_opaque, central_dir_ofs, pState->m_central_dir.m_p, (size_t)central_dir_size) != central_dir_size)
      return sed_mz_FALSE;
    pZip->m_archive_size += central_dir_size;
  }

  // Write end of central directory record
  sed_mz_CLEAR_OBJ(hdr);
  sed_mz_WRITE_LE32(hdr + sed_mz_ZIP_ECDH_SIG_OFS, sed_mz_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG);
  sed_mz_WRITE_LE16(hdr + sed_mz_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, pZip->m_total_files);
  sed_mz_WRITE_LE16(hdr + sed_mz_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, pZip->m_total_files);
  sed_mz_WRITE_LE32(hdr + sed_mz_ZIP_ECDH_CDIR_SIZE_OFS, central_dir_size);
  sed_mz_WRITE_LE32(hdr + sed_mz_ZIP_ECDH_CDIR_OFS_OFS, central_dir_ofs);

  if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, sizeof(hdr)) != sizeof(hdr))
    return sed_mz_FALSE;
#ifndef MINIZ_NO_STDIO
  if ((pState->m_pFile) && (sed_mz_FFLUSH(pState->m_pFile) == EOF))
    return sed_mz_FALSE;
#endif // #ifndef MINIZ_NO_STDIO

  pZip->m_archive_size += sizeof(hdr);

  pZip->m_zip_mode = sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED;
  return sed_mz_TRUE;
}

sed_mz_bool sed_mz_zip_writer_finalize_heap_archive(sed_mz_zip_archive *pZip, void **pBuf, size_t *pSize)
{
  if ((!pZip) || (!pZip->m_pState) || (!pBuf) || (!pSize))
    return sed_mz_FALSE;
  if (pZip->m_pWrite != sed_mz_zip_heap_write_func)
    return sed_mz_FALSE;
  if (!sed_mz_zip_writer_finalize_archive(pZip))
    return sed_mz_FALSE;

  *pBuf = pZip->m_pState->m_pMem;
  *pSize = pZip->m_pState->m_mem_size;
  pZip->m_pState->m_pMem = NULL;
  pZip->m_pState->m_mem_size = pZip->m_pState->m_mem_capacity = 0;
  return sed_mz_TRUE;
}

sed_mz_bool sed_mz_zip_writer_end(sed_mz_zip_archive *pZip)
{
  sed_mz_zip_internal_state *pState;
  sed_mz_bool status = sed_mz_TRUE;
  if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || ((pZip->m_zip_mode != sed_mz_ZIP_MODE_WRITING) && (pZip->m_zip_mode != sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)))
    return sed_mz_FALSE;

  pState = pZip->m_pState;
  pZip->m_pState = NULL;
  sed_mz_zip_array_clear(pZip, &pState->m_central_dir);
  sed_mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
  sed_mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);

#ifndef MINIZ_NO_STDIO
  if (pState->m_pFile)
  {
    sed_mz_FCLOSE(pState->m_pFile);
    pState->m_pFile = NULL;
  }
#endif // #ifndef MINIZ_NO_STDIO

  if ((pZip->m_pWrite == sed_mz_zip_heap_write_func) && (pState->m_pMem))
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pState->m_pMem);
    pState->m_pMem = NULL;
  }

  pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
  pZip->m_zip_mode = sed_mz_ZIP_MODE_INVALID;
  return status;
}

#ifndef MINIZ_NO_STDIO
sed_mz_bool sed_mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, sed_mz_uint16 comment_size, sed_mz_uint level_and_flags)
{
  sed_mz_bool status, created_new_archive = sed_mz_FALSE;
  sed_mz_zip_archive zip_archive;
  struct sed_mz_FILE_STAT_STRUCT file_stat;
  sed_mz_CLEAR_OBJ(zip_archive);
  if ((int)level_and_flags < 0)
     level_and_flags = sed_mz_DEFAULT_LEVEL;
  if ((!pZip_filename) || (!pArchive_name) || ((buf_size) && (!pBuf)) || ((comment_size) && (!pComment)) || ((level_and_flags & 0xF) > sed_mz_UBER_COMPRESSION))
    return sed_mz_FALSE;
  if (!sed_mz_zip_writer_validate_archive_name(pArchive_name))
    return sed_mz_FALSE;
  if (sed_mz_FILE_STAT(pZip_filename, &file_stat) != 0)
  {
    // Create a new archive.
    if (!sed_mz_zip_writer_init_file(&zip_archive, pZip_filename, 0))
      return sed_mz_FALSE;
    created_new_archive = sed_mz_TRUE;
  }
  else
  {
    // Append to an existing archive.
    if (!sed_mz_zip_reader_init_file(&zip_archive, pZip_filename, level_and_flags | sed_mz_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY))
      return sed_mz_FALSE;
    if (!sed_mz_zip_writer_init_from_reader(&zip_archive, pZip_filename))
    {
      sed_mz_zip_reader_end(&zip_archive);
      return sed_mz_FALSE;
    }
  }
  status = sed_mz_zip_writer_add_mem_ex(&zip_archive, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, 0, 0);
  // Always finalize, even if adding failed for some reason, so we have a valid central directory. (This may not always succeed, but we can try.)
  if (!sed_mz_zip_writer_finalize_archive(&zip_archive))
    status = sed_mz_FALSE;
  if (!sed_mz_zip_writer_end(&zip_archive))
    status = sed_mz_FALSE;
  if ((!status) && (created_new_archive))
  {
    // It's a new archive and something went wrong, so just delete it.
    int ignoredStatus = sed_mz_DELETE_FILE(pZip_filename);
    (void)ignoredStatus;
  }
  return status;
}

void *sed_mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, sed_mz_uint flags)
{
  int file_index;
  sed_mz_zip_archive zip_archive;
  void *p = NULL;

  if (pSize)
    *pSize = 0;

  if ((!pZip_filename) || (!pArchive_name))
    return NULL;

  sed_mz_CLEAR_OBJ(zip_archive);
  if (!sed_mz_zip_reader_init_file(&zip_archive, pZip_filename, flags | sed_mz_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY))
    return NULL;

  if ((file_index = sed_mz_zip_reader_locate_file(&zip_archive, pArchive_name, NULL, flags)) >= 0)
    p = sed_mz_zip_reader_extract_to_heap(&zip_archive, file_index, pSize, flags);

  sed_mz_zip_reader_end(&zip_archive);
  return p;
}

#endif // #ifndef MINIZ_NO_STDIO

#endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

#endif // #ifndef MINIZ_NO_ARCHIVE_APIS

#ifdef __cplusplus
}
#endif

#endif // MINIZ_HEADER_FILE_ONLY

/*
  This is free and unencumbered software released into the public domain.

  Anyone is free to copy, modify, publish, use, compile, sell, or
  distribute this software, either in source code form or as a compiled
  binary, for any purpose, commercial or non-commercial, and by any
  means.

  In jurisdictions that recognize copyright laws, the author or authors
  of this software dedicate any and all copyright interest in the
  software to the public domain. We make this dedication for the benefit
  of the public at large and to the detriment of our heirs and
  successors. We intend this dedication to be an overt act of
  relinquishment in perpetuity of all present and future rights to this
  software under copyright law.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  OTHER DEALINGS IN THE SOFTWARE.

  For more information, please refer to <http://unlicense.org/>
*/

namespace miniz_cpp {
namespace detail {

#ifdef _WIN32
char directory_separator = '\\';
char alt_directory_separator = '/';
#else
char directory_separator = '/';
char alt_directory_separator = '\\';
#endif

std::string join_path(const std::vector<std::string> &parts)
{
    std::string joined;
    std::size_t i = 0;
    for(auto part : parts)
    {
        joined.append(part);
        
        if(i++ != parts.size() - 1)
        {
            joined.append(1, '/');
        }
    }
    return joined;
}
    
std::vector<std::string> split_path(const std::string &path, char delim = directory_separator)
{
    std::vector<std::string> split;
    std::string::size_type previous_index = 0;
    auto separator_index = path.find(delim);
    
    while(separator_index != std::string::npos)
    {
        auto part = path.substr(previous_index, separator_index - previous_index);
        if(part != "..")
        {
            split.push_back(part);
        }
        else
        {
            split.pop_back();
        }
        previous_index = separator_index + 1;
        separator_index = path.find(delim, previous_index);
    }
    
    split.push_back(path.substr(previous_index));

    if(split.size() == 1 && delim == directory_separator)
    {
        auto alternative = split_path(path, alt_directory_separator);
        if(alternative.size() > 1)
        {
            return alternative;
        }
    }
    
    return split;
}
    
uint32_t crc32buf(const char *buf, std::size_t len)
{
    uint32_t oldcrc32 = 0xFFFFFFFF;
    
    uint32_t crc_32_tab[] = { /* CRC polynomial 0xedb88320 */
        0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
        0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
        0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
        0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
        0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
        0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
        0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
        0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
        0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
        0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
        0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
        0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
        0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
        0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
        0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
        0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
        0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
        0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
        0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
        0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
        0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
        0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
        0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
        0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
        0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
        0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
        0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
        0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
        0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
        0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
        0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
        0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
        0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
        0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
        0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
        0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
        0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
        0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
        0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
        0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
        0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
        0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
        0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
    };
    
#define UPDC32(octet,crc) (crc_32_tab[((crc)\
^ static_cast<uint8_t>(octet)) & 0xff] ^ ((crc) >> 8))
    
    for ( ; len; --len, ++buf)
    {
        oldcrc32 = UPDC32(*buf, oldcrc32);
    }
    
    return ~oldcrc32;
}

tm safe_localtime(const time_t &t)
{
#ifdef _WIN32
    tm time;
    localtime_s(&time, &t);
    return time;
#else
    tm *time = localtime(&t);
    assert(time != nullptr);
    return *time;
#endif
}

std::size_t write_callback(void *opaque, std::uint64_t file_ofs, const void *pBuf, std::size_t n)
{
    auto buffer = static_cast<std::vector<char> *>(opaque);
    
    if(file_ofs + n > buffer->size())
    {
        auto new_size = static_cast<std::vector<char>::size_type>(file_ofs + n);
        buffer->resize(new_size);
    }

    for(std::size_t i = 0; i < n; i++)
    {
        (*buffer)[static_cast<std::size_t>(file_ofs + i)] = (static_cast<const char *>(pBuf))[i];
    }

    return n;
}

} // namespace detail

struct zip_info
{
    std::string filename;

    struct
    {
        int year = 1980;
        int month = 0;
        int day = 0;
        int hours = 0;
        int minutes = 0;
        int seconds = 0;
    } date_time;

    std::string comment;
    std::string extra;
    uint16_t create_system = 0;
    uint16_t create_version = 0;
    uint16_t extract_version = 0;
    uint16_t flag_bits = 0;
    std::size_t volume = 0;
    uint32_t internal_attr = 0;
    uint32_t external_attr = 0;
    std::size_t header_offset = 0;
    uint32_t crc = 0;
    std::size_t compress_size = 0;
    std::size_t file_size = 0;
};

class zip_file
{
public:
    zip_file() : archive_(new sed_mz_zip_archive())
    {
        reset();
    }

    zip_file(const std::string &filename) : zip_file()
    {
        load(filename);
    }

    zip_file(std::istream &stream) : zip_file()
    {
        load(stream);
    }

    zip_file(const std::vector<unsigned char> &bytes) : zip_file()
    {
        load(bytes);
	}

	zip_file(unsigned char* bytes, size_t byteLength)
			: zip_file()
	{
		load(bytes, byteLength);
	}

    ~zip_file()
    {
        reset();
    }

    void load(std::istream &stream)
    {
        reset();
        buffer_.assign(std::istreambuf_iterator<char>(stream), std::istreambuf_iterator<char>());
        remove_comment();
        start_read();
    }

    void load(const std::string &filename)
    {
        filename_ = filename;
        std::ifstream stream(filename, std::ios::binary);
        load(stream);
    }

    void load(const std::vector<unsigned char> &bytes)
    {
        reset();
        buffer_.assign(bytes.begin(), bytes.end());
        remove_comment();
        start_read();
    }

	void load(unsigned char* bytes, size_t byteLength)
	{
		reset();
		buffer_.assign(bytes, bytes + byteLength);
		remove_comment();
		start_read();
	}

    void save(const std::string &filename)
    {
        filename_ = filename;
        std::ofstream stream(filename, std::ios::binary);
        save(stream);
    }

    void save(std::ostream &stream)
    {
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_WRITING)
        {
            sed_mz_zip_writer_finalize_archive(archive_.get());
        }
        
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)
        {
            sed_mz_zip_writer_end(archive_.get());
        }
        
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_INVALID)
        {
            start_read();
        }
        
        append_comment();
        stream.write(buffer_.data(), static_cast<long>(buffer_.size()));
    }

    void save(std::vector<unsigned char> &bytes)
    {
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_WRITING)
        {
            sed_mz_zip_writer_finalize_archive(archive_.get());
        }
        
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)
        {
            sed_mz_zip_writer_end(archive_.get());
        }
        
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_INVALID)
        {
            start_read();
        }
        
        append_comment();
        bytes.assign(buffer_.begin(), buffer_.end());
    }

    void reset()
    {
        switch(archive_->m_zip_mode)
        {
        case sed_mz_ZIP_MODE_READING:
            sed_mz_zip_reader_end(archive_.get());
            break;
        case sed_mz_ZIP_MODE_WRITING:
            sed_mz_zip_writer_finalize_archive(archive_.get());
            sed_mz_zip_writer_end(archive_.get());
            break;
        case sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED:
            sed_mz_zip_writer_end(archive_.get());
            break;
        case sed_mz_ZIP_MODE_INVALID:
            break;
        }
        
        if(archive_->m_zip_mode != sed_mz_ZIP_MODE_INVALID)
        {
            throw std::runtime_error("");
        }

        buffer_.clear();
        comment.clear();
        
        start_write();
        sed_mz_zip_writer_finalize_archive(archive_.get());
        sed_mz_zip_writer_end(archive_.get());
    }

    bool has_file(const std::string &name)
    {
        if(archive_->m_zip_mode != sed_mz_ZIP_MODE_READING)
        {
            start_read();
        }

        int index = sed_mz_zip_reader_locate_file(archive_.get(), name.c_str(), nullptr, 0);

        return index != -1;
    }

    bool has_file(const zip_info &name)
    {
        return has_file(name.filename);
    }

    zip_info getinfo(const std::string &name)
    {
        if(archive_->m_zip_mode != sed_mz_ZIP_MODE_READING)
        {
            start_read();
        }

        int index = sed_mz_zip_reader_locate_file(archive_.get(), name.c_str(), nullptr, 0);

        if(index == -1)
        {
            throw std::runtime_error("not found");
        }

        return getinfo(index);
    }
    
    std::vector<zip_info> infolist()
    {
        if(archive_->m_zip_mode != sed_mz_ZIP_MODE_READING)
        {
            start_read();
        }

        std::vector<zip_info> info;

        for(std::size_t i = 0; i < sed_mz_zip_reader_get_num_files(archive_.get()); i++)
        {
            info.push_back(getinfo(static_cast<int>(i)));
        }

        return info;
    }

    std::vector<std::string> namelist()
    {
        std::vector<std::string> names;

        for(auto &info : infolist())
        {
            names.push_back(info.filename);
        }

        return names;
    }

    std::ostream &open(const std::string &name)
    {
        return open(getinfo(name));
    }

    std::ostream &open(const zip_info &name)
    {
        auto data = read(name);
        std::string data_string(data.begin(), data.end());
        open_stream_ << data_string;
        return open_stream_;
    }
    
    void extract(const std::string &member, const std::string &path)
    {
        std::fstream stream(detail::join_path({path, member}), std::ios::binary | std::ios::out);
        stream << open(member).rdbuf();
    }

    void extract(const zip_info &member, const std::string &path)
    {
        std::fstream stream(detail::join_path({path, member.filename}), std::ios::binary | std::ios::out);
        stream << open(member).rdbuf();
    }

    void extractall(const std::string &path)
    {
        extractall(path, infolist());
    }

    void extractall(const std::string &path, const std::vector<std::string> &members)
    {
        for(auto &member : members)
        {
            extract(member, path);
        }
    }

    void extractall(const std::string &path, const std::vector<zip_info> &members)
    {
        for(auto &member : members)
        {
            extract(member, path);
        }
    }
    
    void printdir()
    {
        printdir(std::cout);
    }

    void printdir(std::ostream &stream)
    {
        stream << "  Length " << "  " << "   " << "Date" << "   " << " " << "Time " << "   " << "Name" << std::endl;
        stream << "---------  ---------- -----   ----" << std::endl;
        
        std::size_t sum_length = 0;
        std::size_t file_count = 0;

        for(auto &member : infolist())
        {
            sum_length += member.file_size;
            file_count++;

            std::string length_string = std::to_string(member.file_size);
            while(length_string.length() < 9)
            {
                length_string = " " + length_string;
            }
            stream << length_string;

            stream << "  ";
            stream << (member.date_time.month < 10 ? "0" : "") << member.date_time.month;
            stream << "/";
            stream << (member.date_time.day < 10 ? "0" : "") << member.date_time.day;
            stream << "/";
            stream << member.date_time.year;
            stream << " ";
            stream << (member.date_time.hours < 10 ? "0" : "") << member.date_time.hours;
            stream << ":";
            stream << (member.date_time.minutes < 10 ? "0" : "") << member.date_time.minutes;
            stream << "   ";
            stream << member.filename;
            stream << std::endl;
        }

        stream << "---------                     -------" << std::endl;

        std::string length_string = std::to_string(sum_length);
        while(length_string.length() < 9)
        {
            length_string = " " + length_string;
        }
        stream << length_string << "                     " << file_count << " " << (file_count == 1 ? "file" : "files");
        stream << std::endl;
    }

    std::string read(const zip_info &info)
    {
        std::size_t size;
        char *data = static_cast<char *>(sed_mz_zip_reader_extract_file_to_heap(archive_.get(), info.filename.c_str(), &size, 0));
        if(data == nullptr)
        {
        throw std::runtime_error("file couldn't be read");
        }
        std::string extracted(data, data + size);
        sed_mz_free(data);
        return extracted;
    }

    std::string read(const std::string &name)
    {
        return read(getinfo(name));
    }
    
    std::pair<bool, std::string> testzip()
    {
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_INVALID)
        {
            throw std::runtime_error("not open");
        }

        for(auto &file : infolist())
        {
            auto content = read(file);
            auto crc = detail::crc32buf(content.c_str(), content.size());
            
            if(crc != file.crc)
            {
                return {false, file.filename};
            }
        }

        return {true, ""};
    }
    
    void write(const std::string &filename)
    {
        auto split = detail::split_path(filename);
        if(split.size() > 1)
        {
            split.erase(split.begin());
        }
        auto arcname = detail::join_path(split);
        write(filename, arcname);
    }

    void write(const std::string &filename, const std::string &arcname)
    {
        std::fstream file(filename, std::ios::binary | std::ios::in);
        std::stringstream ss;
        ss << file.rdbuf();
        std::string bytes = ss.str();

        writestr(arcname, bytes);
    }

    void writestr(const std::string &arcname, const std::string &bytes)
    {
        if(archive_->m_zip_mode != sed_mz_ZIP_MODE_WRITING)
        {
            start_write();
        }

        if(!sed_mz_zip_writer_add_mem(archive_.get(), arcname.c_str(), bytes.data(), bytes.size(), sed_mz_BEST_COMPRESSION))
        {
            throw std::runtime_error("write error");
        }
    }

    void writestr(const zip_info &info, const std::string &bytes)
    {
        if(info.filename.empty() || info.date_time.year < 1980)
        {
            throw std::runtime_error("must specify a filename and valid date (year >= 1980");
        }
        
        if(archive_->m_zip_mode != sed_mz_ZIP_MODE_WRITING)
        {
            start_write();
        }
        
        auto crc = detail::crc32buf(bytes.c_str(), bytes.size());
        
        if(!sed_mz_zip_writer_add_mem_ex(archive_.get(), info.filename.c_str(), bytes.data(), bytes.size(), info.comment.c_str(), static_cast<sed_mz_uint16>(info.comment.size()), sed_mz_BEST_COMPRESSION, 0, crc))
        {
            throw std::runtime_error("write error");
        }
    }

    std::string get_filename() const { return filename_; }
    
    std::string comment;
    
private:
    void start_read()
    {
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_READING) return;
        
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_WRITING)
        {
            sed_mz_zip_writer_finalize_archive(archive_.get());
        }
        
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)
        {
            sed_mz_zip_writer_end(archive_.get());
        }
            
        if(!sed_mz_zip_reader_init_mem(archive_.get(), buffer_.data(), buffer_.size(), 0))
        {
            throw std::runtime_error("bad zip");
        }
    }

    void start_write()
    {
        if(archive_->m_zip_mode == sed_mz_ZIP_MODE_WRITING) return;
        
        switch(archive_->m_zip_mode)
        {
            case sed_mz_ZIP_MODE_READING:
            {
                sed_mz_zip_archive archive_copy;
            std::memset(&archive_copy, 0, sizeof(sed_mz_zip_archive));
                std::vector<char> buffer_copy(buffer_.begin(), buffer_.end());
                
                if(!sed_mz_zip_reader_init_mem(&archive_copy, buffer_copy.data(), buffer_copy.size(), 0))
                {
                    throw std::runtime_error("bad zip");
                }
                
                sed_mz_zip_reader_end(archive_.get());
                
                archive_->m_pWrite = (sed_mz_file_write_func)&detail::write_callback;
                archive_->m_pIO_opaque = &buffer_;
                buffer_ = std::vector<char>();
                
                if(!sed_mz_zip_writer_init(archive_.get(), 0))
                {
                    throw std::runtime_error("bad zip");
                }
                
                for(unsigned int i = 0; i < static_cast<unsigned int>(archive_copy.m_total_files); i++)
                {
                    if(!sed_mz_zip_writer_add_from_zip_reader(archive_.get(), &archive_copy, i))
                    {
                        throw std::runtime_error("fail");
                    }
                }
                
                sed_mz_zip_reader_end(&archive_copy);
                return;
            }
            case sed_mz_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED:
                sed_mz_zip_writer_end(archive_.get());
                break;
            case sed_mz_ZIP_MODE_INVALID:
            case sed_mz_ZIP_MODE_WRITING:
                break;
        }

        archive_->m_pWrite = (sed_mz_file_write_func)&detail::write_callback;
        archive_->m_pIO_opaque = &buffer_;

        if(!sed_mz_zip_writer_init(archive_.get(), 0))
        {
            throw std::runtime_error("bad zip");
        }
    }

    void append_comment()
    {
        if(!comment.empty())
        {
            auto comment_length = std::min(static_cast<uint16_t>(comment.length()), std::numeric_limits<uint16_t>::max());
            buffer_[buffer_.size() - 2] = static_cast<char>(comment_length);
            buffer_[buffer_.size() - 1] = static_cast<char>(comment_length >> 8);
            std::copy(comment.begin(), comment.end(), std::back_inserter(buffer_));
        }
    }

    void remove_comment()
    {
        if(buffer_.empty()) return;
        
        std::size_t position = buffer_.size() - 1;
        
        for(; position >= 3; position--)
        {
            if(buffer_[position - 3] == 'P'
               && buffer_[position - 2] == 'K'
               && buffer_[position - 1] == '\x05'
               && buffer_[position] == '\x06')
            {
                position = position + 17;
                break;
            }
        }
        
        if(position == 3)
        {
            throw std::runtime_error("didn't find end of central directory signature");
        }
        
        uint16_t length = static_cast<uint16_t>(buffer_[position + 1]);
        length = static_cast<uint16_t>(length << 8) + static_cast<uint16_t>(buffer_[position]);
        position += 2;
        
        if(length != 0)
        {
            comment = std::string(buffer_.data() + position, buffer_.data() + position + length);
            buffer_.resize(buffer_.size() - length);
            buffer_[buffer_.size() - 1] = 0;
            buffer_[buffer_.size() - 2] = 0;
        }
    }

    zip_info getinfo(int index)
    {
        if(archive_->m_zip_mode != sed_mz_ZIP_MODE_READING)
        {
            start_read();
        }

        sed_mz_zip_archive_file_stat stat;
        sed_mz_zip_reader_file_stat(archive_.get(), static_cast<sed_mz_uint>(index), &stat);

        zip_info result;

        result.filename = std::string(stat.m_filename, stat.m_filename + std::strlen(stat.m_filename));
        result.comment = std::string(stat.m_comment, stat.m_comment + stat.m_comment_size);
        result.compress_size = static_cast<std::size_t>(stat.m_comp_size);
        result.file_size = static_cast<std::size_t>(stat.m_uncomp_size);
        result.header_offset = static_cast<std::size_t>(stat.m_local_header_ofs);
        result.crc = stat.m_crc32;
        auto time = detail::safe_localtime(stat.m_time);
        result.date_time.year = 1900 + time.tm_year;
        result.date_time.month = 1 + time.tm_mon;
        result.date_time.day = time.tm_mday;
        result.date_time.hours = time.tm_hour;
        result.date_time.minutes = time.tm_min;
        result.date_time.seconds = time.tm_sec;
        result.flag_bits = stat.m_bit_flag;
        result.internal_attr = stat.m_internal_attr;
        result.external_attr = stat.m_external_attr;
        result.extract_version = stat.m_version_needed;
        result.create_version = stat.m_version_made_by;
        result.volume = stat.m_file_index;
        result.create_system = stat.m_method;
        
        return result;
    }

    std::unique_ptr<sed_mz_zip_archive> archive_;
    std::vector<char> buffer_;
    std::stringstream open_stream_;
    std::string filename_;
};

} // namespace miniz_cpp
